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  1. Nor Qhairul Izzreen, M. N., Mohd Fadzelly, A. B., Umi Hartina, M. R., Rabiatul Amirah, R., Rozzamri, A.
    MyJurnal
    The present work investigated the cytotoxicity capacity of the MDA-MB-231 (human
    cancer-derived), A549 (human lung cancer-derived), Caov3 (human ovarian cancer-derived),
    and HeLa (human cervical cancer-derived) cell lines on a wide range of tea leaves; green tea,
    black tea, tea waste, and compost from Sabah. A group of male and female Sprague Dawley
    rats was used to screen the sub-acute toxicity of green tea extract in tea leaves from Sabah for
    28 d. Results revealed that the ethanol extract of tea leaves had strong cytotoxic activity
    against all cancer lines. Tea waste showed higher cytotoxicity when extracted using hot water.
    The ethanol extract of black tea leaves exhibited the highest inhibitory activity against the
    proliferation of Caov3, whereas the ethanol extract of green tea leaves exhibited a promising
    cytotoxic activity against MDA-MB-231 and HeLa cell lines. Toxicity studies showed
    decreased testes weight and increased liver weight in male rats that were administered with
    5000 mg/kg of tea extract. This coincided with the significant increase portrayed by enzyme
    alanine aminotransferase (ALT) in the serum of treated male rats in the 5000 mg/kg dose
    group. Moreover, there was an increase of alkaline phosphatase (ALP) and ALT for the
    female rats in the 5000 mg/kg dose group. The increased levels of ALT and ALP enzymes, as
    well as liver weight, signified mechanical trauma in the liver of male and female rats in the
    5000 mg/kg dose group.
  2. Hasanah NN, Mohamad Azman E, Rozzamri A, Zainal Abedin NH, Ismail-Fitry MR
    Polymers (Basel), 2023 May 31;15(11).
    PMID: 37299340 DOI: 10.3390/polym15112541
    The butterfly pea flower (Clitoria ternatea L.) (BPF) has a high anthocyanin content, which can be incorporated into polymer-based films to produce intelligent packaging for real-time food freshness indicators. The objective of this work was to systematically review the polymer characteristics used as BPF extract carriers and their application on various food products as intelligent packaging systems. This systematic review was developed based on scientific reports accessible on the databases provided by PSAS, UPM, and Google Scholar between 2010 and 2023. It covers the morphology, anthocyanin extraction, and applications of anthocyanin-rich colourants from butterfly pea flower (BPF) and as pH indicators in intelligent packaging systems. Probe ultrasonication extraction was successfully employed to extract a higher yield, which showed a 246.48% better extraction of anthocyanins from BPFs for food applications. In comparison to anthocyanins from other natural sources, BPFs have a major benefit in food packaging due to their unique colour spectrum throughout a wide range of pH values. Several studies reported that the immobilisation of BPF in different polymeric film matrixes could affect their physicochemical properties, but they could still effectively monitor the quality of perishable food in real-time. In conclusion, the development of intelligent films employing BPF's anthocyanins is a potential strategy for the future of food packaging systems.
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