Displaying publications 61 - 80 of 237 in total

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  1. Fulltext Association of Salivary Statherin, Calcium, and Proline-Rich Proteins on Oral Hygiene: A Cross-Sectional Study
    Pateel DGS, Gunjal S, Fong LF, Hanapi NSM
    Int J Dent, 2021;2021:1982083.
    PMID: 33688346 DOI: 10.1155/2021/1982083
    Background: Saliva, as a complex biofluid, plays a pivotal role in maintaining oral health and tooth integrity. There has been inconsistent data available on the relationship between salivary parameters and oral health. This study aims to investigate the association between salivary statherin, acidic proline-rich proteins (aPRP), and calcium with oral hygiene status.

    Methods: One hundred and eighty-eight healthy subjects aged between 18 and 50 years with varying oral hygiene status who gave consent to participate were included in this cross-sectional study. The subjects were recruited from primary oral health care of MAHSA University. Oral hygiene of all the participants was measured using Oral Hygiene Index-Simplified (OHI-S). Stimulated saliva collected using paraffin wax was analyzed for salivary statherin, aPRP, and calcium. The relationship between salivary statherin, aPRP, and calcium levels with OHI-S was assessed using Spearman's Rank correlation coefficient; the strength of relationship was assessed by multiple linear regression analysis.

    Results: The study found a weak positive correlation (r = 0.179, p = 0.014) between salivary statherin and OHI-S; weak negative correlation (r = -0.187, p = 0.010) between salivary aPRP and OHI-S; and moderate negative correlation between salivary statherin and salivary aPRP levels (r = -0.50, p 

    Matched MeSH terms: Minerals
  2. Fulltext The Safety Of Capsules Containing Lactic Acid Bacilli
    Paraidathathu, Thomas, Lee, S.H.
    Ann Dent, 1999;6(1):-.
    MyJurnal
    The population in Malaysia use various types of health and food supplements. These products are considered safe and are used without any concern for their toxicity. Among the products used as health supplements are products that contain lactic acid bacteria. This project studied the acute and subacute toxicity of a product containing minerals, herbs, vitamins and live lactic acid bacteria, on Sprague- Dawley rats. Acute toxicity was tested 24 hours after a single dose and subacute toxicity was studied 24 hours after 7 days of daily dosing. The parameters that were studied were alanine aminotransferase (AL T,SGPT), aspartate aminotransferase (AST, SGOT), serum urea, ratios of weight of kidney and liver weight to body weight and percentage changes in body weights. The contents of capsules of the product (6, 8 or lO capsules for acute studies and 6, 10 and 12 for subacute studies) were mixed with corn oil and fed orally to rats. Control rats were fed with corn oil alone. In the acute studies, the level of ALT in the rats treated with the contents of the capsule was lower than controls. There were no significant changes in the other parameters of the rats in the treatment groups as compared to controls. There were no significant differences in all the parameters between rats in the treatment groups as compared to controls in the subacute studies. Sprague-Dawley rats fed with high doses of the product did not show signs of toxicity in the parameters that were studied.
    Matched MeSH terms: Minerals
  3. Soil carbon stocks in Sarawak, Malaysia
    Padmanabhan E, Eswaran H, Reich PF
    Sci Total Environ, 2013 Nov 1;465:196-204.
    PMID: 23541401 DOI: 10.1016/j.scitotenv.2013.03.024
    The relationship between greenhouse gas emission and climate change has led to research to identify and manage the natural sources and sinks of the gases. CO2, CH4, and N2O have an anthropic source and of these CO2 is the least effective in trapping long wave radiation. Soil carbon sequestration can best be described as a process of removing carbon dioxide from the atmosphere and relocating into soils in a form that is not readily released back into the atmosphere. The purpose of this study is to estimate carbon stocks available under current conditions in Sarawak, Malaysia. SOC estimates are made for a standard depth of 100 cm unless the soil by definition is less than this depth, as in the case of lithic subgroups. Among the mineral soils, Inceptisols tend to generally have the highest carbon contents (about 25 kg m(-2) m(-1)), while Oxisols and Ultisols rate second (about 10-15 kg m(-2) m(-1)). The Oxisols store a good amount of carbon because of an appreciable time-frame to sequester carbon and possibly lower decomposition rates for the organic carbon that is found at 1m depths. Wet soils such as peatlands tend to store significant amounts of carbon. The highest values estimated for such soils are about 114 kg m(-2) m(-1). Such appreciable amounts can also be found in the Aquepts. In conclusion, it is pertinent to recognize that degradation of the carbon pool, just like desertification, is a real process and that this irreversible process must be addressed immediately. Therefore, appropriate soil management practices should be instituted to sequester large masses of soil carbon on an annual basis. This knowledge can be used effectively to formulate strategies to prevent forest fires and clearing: two processes that can quickly release sequestered carbon to the atmosphere in an almost irreversible manner.
    Matched MeSH terms: Minerals
  4. Nutritional characteristics of the leaves of native plants growing in adverse soils of humid tropical lowlands
    Osaki M, Watanabe T, Ishizawa T, Nilnond C, Nuyim T, Shinano T, et al.
    Plant Foods Hum Nutr, 2003;58(2):93-115.
    PMID: 12906350
    Acid sulfate, peat, sandy podzolic, and saline soils are widely distributed in the lowlands of Thailand and Malaysia. The nutrient concentrations in the leaves of plants grown in these type of soils were studied with the aim of developing a nutritional strategy for adapting to such problem soils. In sago and oil palms that were well-adapted to peat soil, the N, P, and K concentrations were the same in the mature leaves, while the Ca, Mg, Na, and Fe concentrations were higher in the mature leaves of the oil palm than of the sago palm. Melastoma malabathricum and Melaleuca cajuputi plants that were well-adapted to low pH soils, peat. and acid sulfate soils were also studied. It was observed that a high amount of Al accumulated in the M. marabathricum leaves, while Al did not accumulate in M. cajuputi leaves. M. cajuputi plants accumulated large amounts of Na in their leaves or stems regardless of the exchangeable Na concentration in the soil, while M. malabathricum that was growing in saline-affected soils excluded Na. Positive relationships between macronutrients were recognized between P and N, between K and N, and between P and K. Al showed antagonistic relationships with P, K, Ca, Mg, Fe, Zn, Cu, and Na. Na also showed antagonistic relationships with P, K, Zn, Mn, Cu, and Al. Fe showed weak antagonistic relationships with Zn, Mn, Cu, and Al.
    Matched MeSH terms: Minerals/analysis*
  5. Fulltext Proximate composition, nutritional attributes and mineral composition of Peperomia pellucida L. (Ketumpangan Air) grown in Malaysia
    Ooi DJ, Iqbal S, Ismail M
    Molecules, 2012 Sep 17;17(9):11139-45.
    PMID: 22986924 DOI: 10.3390/molecules170911139
    This study presents the proximate and mineral composition of Peperomia pellucida L., an underexploited weed plant in Malaysia. Proximate analysis was performed using standard AOAC methods and mineral contents were determined using atomic absorption spectrometry. The results indicated Peperomia pellucida to be rich in crude protein, carbohydrate and total ash contents. The high amount of total ash (31.22%)suggests a high-value mineral composition comprising potassium, calcium and iron as the main elements. The present study inferred that Peperomia pellucida would serve as a good source of protein and energy as well as micronutrients in the form of a leafy vegetable for human consumption.
    Matched MeSH terms: Minerals/analysis
  6. Assessing ureolytic bacteria with calcifying abilities isolated from limestone caves for biocalcification
    Omoregie AI, Ong DEL, Nissom PM
    Lett Appl Microbiol, 2019 Feb;68(2):173-181.
    PMID: 30537001 DOI: 10.1111/lam.13103
    Biocalcification through the use of ureolytic bacteria and biochemical activities has evolved in recent decades into a fervent resourceful effective technology suitable for soil stabilization, crack repair and bioremediation. Extensive studies have been carried out on numerous ureolytic bacterial species isolated from soils and sewage samples. However, very limited attention has been given to limestone caves with natural calcite formations as a possible source for isolation of ureolytic bacteria. In this study, bacterial isolates were recovered from limestone cave samples to determine their suitability for biocalcification. Twenty-seven morphologically distinct bacterial isolates were identified by partial 16S rRNA gene sequencing and their various genetic diversity was characterized according to their phylogenetic affiliations. Based on the molecular identification, Sporosarcina was the most abundant genus among all the ureolytic isolates, while the rest belonged to Pseudogracilibacillus and Bacillus genera. Analytical analysis on urease measurement showed that urease activities for the isolates ranged from 1·130 to 21·513 mol urea hydrolysed per minute, with isolate NB33 achieving the highest value and TSB4 achieving the lowest value. The estimated CaCO3 precipitates for the isolates ranged from 4·04 to 17·26 mg ml-1 , with isolate NB30 achieving the highest value and TSB20 achieving the lowest value. The findings in this study demonstrated that the ureolytic bacteria from limestone caves are promising bio-calcifying agents. SIGNIFICANCE AND IMPACT OF THE STUDY: Ureolytic bacteria continues to play an important role as microbial tools used in geotechnical engineering for soil biocalcification. Microbial strains with the ability to produce urease enzyme and induce calcium carbonate mineral are often isolated from soil, water and sludge samples. However, screening for these essential microbes from extreme regions such as caves are rarely investigated. In this study, native bacteria which were isolated from limestone cave samples are identified and characterized. The findings suggested that these ureolytic bacterial isolates have the potential to serve as suitable alternative microbial agents for soil strengthening and stabilization.
    Matched MeSH terms: Minerals
  7. Fulltext γ-ray interference and emission probability selection in the determination of natural radionuclide concentration using γ-spectrometry
    Omar, M.
    Journal of Nuclear and Related Technologies, 2009;2009(2):78-88.
    MyJurnal
    The interference of 235 U on 226 Ra concentration measured directly using the γ-ray energy of 186 keV and the interference of 228 Ac on the 40 K analysis by gamma-spectrometry system were highlighted and discussed. The interference of 235 U was demonstrated to be very significant, i.e. 45% of the 226 Ra concentration measured directly at 186 keV in natural samples containing uranium series in equilibrium. The interference of 228 Ac on 40 K concentration was particularly significant for samples containing high concentration of 228 Ac ( 228 Ra) such as radioactive minerals. Another important aspect discussed is the assignment of the right emission probability of the 583 keV and 2614 keV of the 208 Tl for the purpose of estimating the concentration of 232 Th or other radionuclides in the thorium series. Extra cautions are required in the interpretation of the measured 208 Tl concentration in samples of various natures. It is suggested that the emission probability used for 208 Tl be reported for comparison and verification.
    Matched MeSH terms: Minerals
  8. Fulltext Radioactive disequilibrium and total activity concentration of norm waste
    Omar, M., Hamzah, M.S., Wood, A.K.
    Journal of Nuclear and Related Technologies, 2008;2008(2):47-56.
    MyJurnal
    A study to measure the concentrations of long-lived radionuclides of the uranium and thorium series in naturally occurring radioactive materials (NORM) wastes was carried out using gamma spectrometry and neutron activation analysis methods. It was found that radionuclides in the NORM wastes of the oil/gas production and ores/minerals processing industries were not in equilibrium. The 226 Ra/ 238 U and 228 Ra/ 232 Th ratios were between 0.001 and 2220 indicating that the concentrations of daughters radionuclides ( 226 Ra, 228 Ra) were very low or very high compared to the parent radionuclides ( 238 U, 232 Th) in the NORM wastes.
    Matched MeSH terms: Minerals
  9. Fulltext Absorbed dose rate levels around amang plant buildings
    Omar, M., Sulaiman, I., Hassan, A.
    Journal of Nuclear and Related Technologies, 2008;2008(2):73-76.
    MyJurnal
    The measurements of absorbed dose rate in air around amang plant buildings were carried out using a scintillation detector. It was found that the mean radiation levels at seven amang plants were in the range of 1.6 – 5.5 µGy h -1. The individual maximum value measured was 56 µGy h -1. The annual dose to a worker transporting the minerals to the plant was estimated to be 1.5 mSv y -1.
    Matched MeSH terms: Minerals
  10. Radiation dose assessment at amang processing plants in Malaysia
    Omar M, Sulaiman I, Hassan A, Wood AK
    Radiat Prot Dosimetry, 2007;124(4):400-6.
    PMID: 17510205
    Measurements of external radiation level, radon/thoron daughters concentrations in air and uranium/thorium concentrations in airborne mineral dust at 16 amang plants in Malaysia were carried out for three consecutive months to assess radiation dose to workers. Estimated occupational dose was within the range of 1.7-10.9 mSv y(-1). The mean total dose at the amang plants was 4.1 mSv y(-1). Overall, it was found that the major dose contribution of 80% came from external radiation. Radon/thoron daughters and airborne mineral dust contributed to only 11 and 9% of the total dose, respectively.
    Matched MeSH terms: Minerals/isolation & purification*
  11. Utilization of Malaysia EAF slags for effective application in direct aqueous sequestration of carbon dioxide under ambient temperature
    Omale SO, Choong TSY, Abdullah LC, Siajam SI, Yip MW
    Heliyon, 2019 Oct;5(10):e02602.
    PMID: 31667417 DOI: 10.1016/j.heliyon.2019.e02602
    Iron and steel industries are among the contributors of CO2 emission in large volume into the atmosphere, causing detrimental effects to the environment and the ecosystem at large scale. These industries also generate solid wastes in the form of electric arc furnace (EAF) slag during operations which result in about 10-15% slag wastes per ton of steel produced. In this study, the EAF slags from an iron and steel-making factory in Klang, Malaysia was utilized for CO2 sequestration through direct aqueous mineral carbonation. According to the surface area analysis, the fresh EAF slag has a mesoporous structure, its elemental composition shows the presence of 20.91 wt.% of CaO that was used for the sequestration of CO2 through carbonation. The sequestration capacity was found to be 58.36 g CO2/kg of slag at ambient temperature in 3 h, with the liquid/solid (L/S) ratio of 5:1 and using <63μm particle size. Moreover, the shrinking core model (SCM) was used to analyze the solid-fluid reaction in a heterogeneous phase and the CO2 sequestration shows to be controlled by the product layer phase. The EAF slag is demonstrated to have the potential of CO2 sequestration at ambient temperature.
    Matched MeSH terms: Minerals
  12. Fulltext Data article on elemental and metabolomic-based alkaloidal composition in black pepper oleoresin using a positive ESI-mode LC-QToF and ICP-mass spectroscopy
    Olalere OA, Abdurahman NH, Yunus RBM, Alara OR
    Data Brief, 2018 Aug;19:1627-1630.
    PMID: 30229034 DOI: 10.1016/j.dib.2018.06.034
    This paper contains data from the elemental and phytochemical profiling of black pepper oleoresin extracts using the LC-MS QToF and ICP-MS analysis. In recent years studies have shown the medicinal properties of extracts from these two cultivars of Piper nigrum. The medicinal properties are attributed to the presence of many secondary metabolites and mineral element in them. The phytochemical profiling was conducted using a Liquid Chromatography equipped with an electrospray time-of-flight mass spectrometer detectors. The mass spectrometer was equipped with an electrospray ionization sources operated in positive ion mode. The alkaloid compounds in the optimized black pepper extract were tentatively characterized in accordance with their ions׳ mass fragmentation.
    Matched MeSH terms: Minerals
  13. Fulltext Metal toxicity and environmental effects on health: A study report on mineral and heavy metal contents of different Malaysian fish species
    Octavianti, F., Jaswir, I.
    International Food Research Journal, 2017;24(101):544-551.
    MyJurnal
    This paper discusses effects of metal toxicity and environment on health and followed by a study report on mineral and heavy metal contents of fish conducted in Malaysia as an example. Fish, a part of being a good source of digestible protein vitamins, minerals and polyunsaturated fatty acids (PUFAs), are also an important source of heavy metals. Some of the metals found in the fish might be essential as they play important role in biological system of the fish as well as in human being, some of them may also be toxic as might cause a serious damage in human health even in trace amount at a certain limit. A comprehensive study was conducted to fishes collected in Langkawi Island, a popular tourist destination in Malaysia and the overall findings revealed that from the human health point of view, the fin is a type offish found in the coastal areas of the island are safe for the consumption. The mineral and heavy metal contents are within the allowable limit of consumption.
    Matched MeSH terms: Minerals
  14. Fulltext Variability in nutritional composition and phytochemical properties of red pitaya (Hylocereus polyrhizus) from Malaysia and Australia
    Nurul, S.R., Asmah, R
    International Food Research Journal, 2014;21(4):1689-1697.
    MyJurnal
    The present work sought to investigate the nutritional composition and phytochemical properties of red pitaya (Hylocereus polyrhizus) juices from Malaysia and Australia and to determine the optimum ethanol concentration (in the range of 0 – 100% ethanol) for the extraction of phenolic, flavonoid and betacyanin contents. The predominant macronutrient in red pitaya juice was carbohydrate while potassium and vitamin A were the major mineral and vitamin content. Red pitaya juice from Malaysia achieved optimal total phenolic content at 20% of ethanol (20 mL ethanol in 100 mL water, v/v); total flavonoid content at 60% (v/v); and betacyanin content at 0% (v/v). Red pitaya juice from Australia achieved the maximum total phenolic content at 60% (v/v); total flavonoid content at 20% (v/v); and betacyanin content at 80% (v/v). Nutritional composition and the phytochemical properties of red pitaya in Malaysia and Australia were significantly different suggested the role of environmental factors like soil and climate on the phytochemical properties of red pitaya.
    Matched MeSH terms: Minerals
  15. Fulltext Nutritional content and in vitro antioxidant potential of Garcinia atroviridis (Asam gelugor) leaves and fruits
    Nursakinah I, Zulkhairi HA, Norhafizah M, Hasnah B, Zamree MS, Farrah SI, et al.
    Malays J Nutr, 2012 Dec;18(3):363-71.
    PMID: 24568077 MyJurnal
    The objective of this study was to determine antioxidant potential of Garcinia atroviridis leaves and fruits extracts in vitro.
    Matched MeSH terms: Minerals/analysis
  16. Fulltext Phytochemistry, pharmacology and toxicology properties of Strobilanthes crispus
    Nurraihana, H., Norfarizan-Hanoon, N.A.
    International Food Research Journal, 2013;20(5):2045-2056.
    MyJurnal
    Strobilanthes crispus (S. crispus) is an herbal medicine plant which is native to countries from Madagascar to Indonesia. The plants contained high amount of mineral content and vitamin C, B1 and B2. This plant are used in medicinal and to treat a variety of ailments in the various traditional systems of medicine. Phytochemical investigations have revealed that the plant contain polyphenols, flavonoids, catechins, alkaloids, caffeine, tannins, compounds known to possess multiple health beneficial effects. Preclinical studies have shown that the plant possess antioxidant, free radical scavenging, anticancer, antidiabetic, antimicrobial, wound healing and antiulcerogenic activities. This review presents the comprehensive overview of phytochemical constituents, pharmacological and toxicological properties of S. crispus and to provide preliminary information for future research and for commercial exploitation.
    Matched MeSH terms: Minerals
  17. Fulltext Mineral contents of selected marine fish and shellfish from the west coast of Peninsular Malaysia
    Nurnadia, A.A., Azrina, A., Amin, I., Mohd Yunus, A.S., Mohd Izuan Effendi, H.
    International Food Research Journal, 2013;20(1):431-437.
    MyJurnal
    The study was conducted to determine the mineral contents of 20 species of marine fish and 4 species of shellfish from the west coast of Peninsular Malaysia.Overall, the contents of micro minerals in all samples were below the permissible limits; except for oyster; with copper slightly higher than the limit set by FAO/WHO (1984), but below the limit set by Malaysian Food Regulations (1985); and zinc content higher than the limit set by Malaysian Food Regulations (1985), but below the limit set by FAO/WHO (1984). Meanwhile for macro minerals, most samples contained comparable sodium contents, significantly lower of potassium contents, higher calcium contents, and extremely higher of magnesium contents compared to the common ranges reported in the literatures. All samples were good sources of micro and macro minerals and could provide multi-health benefits if consumed in recommended amounts.
    Matched MeSH terms: Minerals
  18. Fulltext Physicochemical Properties, Nutritional Composition and Sensory Acceptance of Chicken Meat Sausages with Chia Seed Powder Substitution
    Nurhani Fatihah Mohd Hanifah, Hanis Nadia Yahya, Norlelawati Arifin
    Malaysian Journal of Science, Health & Technology, 2021;7(1):34-42.
    MyJurnal
    Chia seed has a high content of fibres and polyunsaturated fatty acids. Chia seed also holds numerous amounts of minerals and vitamins, including calcium and phosphorus. Chia seed offers a great potential of gel-forming ability and good water and oil holding capacities. Therefore, this study aims to determine the effect of chia seed powder substitution in chicken meat sausage formulations on the physicochemical characteristics and sensory acceptance. In the study, the chicken meat sausages were produced in four formulations; sample A as the control (100% chicken meat), sample B (5% substitution of chia seed powder to chicken meat), sample C (10% substitution of chia seed powder to chicken meat) and sample D (15% substitution of chia seed powder to chicken meat). The sausages were analysed for colour, texture, water holding capacity, cooking loss, proximate analysis, crude fibre content, and sensory acceptability. As for the findings, the substitution of chia seed powder resulted in low ‘L’ values of chicken meat sausage due to the dark colour of the chia seed. On the other hand, chia seed powder's substitution decreased the hardness and cohesiveness values. However, it increased the adhesiveness, springiness, and chewiness. Water holding capacity and a cooking loss percentage of the chicken meat sausages with chia seed powder substitution were observed to improve compared to control sausage (100% chicken meat), resulting in juicier sausages. The chia seed powder substitution increased the carbohydrate, ash, fat, and fibre contents for the chemical composition. On a 9-point hedonic scale, sample B (5% chia seed powder substitution) exhibited the highest sensory scores in all attributes evaluated (colour, texture, taste, juiciness, and overall acceptance). Thus, it can be concluded that chia seed powder can be substituted in chicken meat sausage to produce better quality products.

    Matched MeSH terms: Minerals
  19. Fulltext Faktor yang mempengaruhi paras kromium dalam kalangan petani di daerah Bachok dan Pasir Puteh, Kelantan
    Nurfariha Firdaus, Ismarulyusda Ishak, Syarif Husin Lubis, Nooraisyah Mansoor, Hidayatul Fathi Othman, Nihayah Mohammad, et al.
    Jurnal Sains Kesihatan Malaysia, 2014;12(2):27-31.
    MyJurnal
    Kromium merupakan mineral yang penting dan kofaktor insulin yang memainkan peranan penting sebagai hormon yang membantu dalam regulasi gula dalam darah. Penduduk Kelantan sering dikaitkan dengan pengambilan makanan berasaskan gula. Petani merupakan golongan yang berisiko tinggi kerana pendedahan terhadap pestisid dan pengambilan makanan bergula boleh mempengaruhi paras kromium. Objektif kajian ini adalah untuk mengetahui status paras kromium dalam kalangan petani yang terdedah kepada pestisid dan baja kimia di Kelantan. Kajian ini adalah kajian keratan rentas yang dilakukan di Bachok dan Pasir Puteh, Kelantan. Responden adalah seramai 113 petani yang terdedah kepada pestisid atau baja kimia tidak kurang daripada satu tahun. Subjek ditemu bual menggunakan soal selidik pengetahuan, sikap dan amalan (KAP) yang telah divalidasi untuk informasi berkaitan data demografi k. Sampel kuku dan rambut telah dianalisia dengan menggunakan kaedah pencernaan asid dan Inductively Coupled Plasma Mass Spectroscopy (ICPMS) untuk mendapatkan paras kromium. Hasil kajian menunjukkan 81.4% adalah petani lelaki dan 18.6% adalah perempuan. Paras kromium kuku (125.82 ± 47.81 μg/L) dan rambut (39.63 ± 5.70 μg/L) petani adalah lebih rendah berbanding julat piawai kuku (6200 μg/L) dan rambut (100-2500 μg/L). Tiada perbezaan paras kromium yang signifi kan (p > 0.05) menurut jantina, umur, glukosa darah, tempoh pendedahan pestisid dan pemakanan. Petani yang merokok menunjukkan paras kromium yang lebih rendah (p < 0.05) berbanding petani yang tidak merokok. Kesimpulannya, paras unsur kromium petani di Bachok dan Pasir Puteh adalah rendah berbanding julat normal dan petani harus berhenti merokok kerana merokok akan merendahkan paras kromium.
    Matched MeSH terms: Minerals
  20. Fulltext Antioxidant activity of bee pollen ethanolic extracts from Malaysian stingless bee measured using DPPH-HPLC assay
    Nurdianah, H.F., Ahmad Firdaus, A.H., Eshaifol Azam, O., Wan Adnan, W.O.
    International Food Research Journal, 2016;23(1):403-405.
    MyJurnal
    Bee pollen is considered as one of the functional foods due to its complex biochemical
    properties. Bee pollen which is collected from pollen grains from various botanical sources
    contains almost a complete nutrition such as carbohydrates, proteins, amino acids, vitamins
    and minerals. Its beneficial effect on health is thought to be due to the presence of phenolic
    compounds with its antioxidant activity. Antioxidant activities of ethanolic bee pollen extract
    (BPE) from three species of Malaysian stingless bee; Trigona thoracica, Trigona itama and
    Trigona apicalis in this study were measured using DPPH-HPLC method and gallic acid (GA)
    as a standard reference. The percentage of DPPH inhibition by T. apicalis BPE at 1 mg/mL
    showed the highest inhibition (39%, GA equivalent to 0.3 mg/mL) compared with T. itama
    (14.3%, GA equivalent to 0.1 mg/mL) and T. thoracica (6.7%, GA equivalent to 0.05 mg/mL).
    Our result was the first in reporting antioxidant activity of BPE measured using DPPH-HPLC
    method from three different species of Malaysian stingless bee.
    Matched MeSH terms: Minerals
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