Determination of quality attributes in wax jambu fruit using NIRS and PLS
Publication date: 1 January 2016 Source:Food Chemistry, Volume 190 Author(s): Thayna R. Viegas , Ana L.M.L. Mata , Márcia M.L. Duarte , Kássio M.G. Lima The aim of this work was to develop an analytical method to predict total anthocyanins content (TAC) and total phenolic compounds (TPC) in intact wax jambu fruit [Syzygium malaccense (L.) Merryl et Perry] using near-infrared spectroscopy (NIRS) and partial least squares (PLS). The estimation accuracy was based on parameters such as root mean square error of prediction (RMSEP), correlation coefficients [calibration (r c) and prediction (r p) set] and ratio of performance to deviation (RPD). TAC, r p =0.98, RMSEP=9.0mgL−1 and RPD=5.19 were attained using second derivative pre-treatment. TPC, r p =0.94, RMSEP=22.18 (mg gallic acid equivalents (GAE)/100g) and RPD=3.27 (excellent accuracy) were also obtained using second derivative pre-treatment. These findings suggest that the NIRS and PLS algorithms can be used to determine TCA and TPC in intact wax jambu fruit.
Authors: Masouris I, Klein M, Ködel U Abstract INTRODUCTION: Central nervous system (CNS) infections can be life-threatening and are often associated with disabling sequelae. One important factor in most CNS infections is a timely pathogen-specific treatment. The diagnostic methods available, however, do not always reach a satisfying sensitivity and specificity. In these cases, there is need for additional diagnostic biomarkers. Chemokines represent potential candidates as biomarkers, since they are an important pillar of the host immune response. The aim of this review is to discuss the diagnostic potential o...
Publication date: Available online 1 June 2020Source: Biotechnology ReportsAuthor(s): Bouchra Louasté, Noureddine Eloutassi
Publication date: Available online 1 June 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): S.R. Saranya, Sudhakaran R
Publication date: Available online 1 June 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Jee Yin Cheong, Mustafa Muskhazli, Abd Aziz Nor Azwady, Siti Aqlima Ahmad, Azleen Ahmad Adli
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Discussion and conclusions: M. sirikitiae is a source of cytotoxic lignans and alkaloids. Among the cytotoxic compounds, magnone A and 6-methoxymarcanine A are potentially useful lead compounds for the further development of anticancer agents because of their selective inhibitory effects on cancer cell lines. PMID: 32478640 [PubMed - as supplied by publisher]
Discussion and conclusions: EXD demonstrated neuroprotective effects and improved depression-like behaviour in mice. Further research should be focussed on the mechanism of the active components in EXD. PMID: 32476554 [PubMed - in process]
This study examined the antihypoxia effects of SPM in vivo.Materials and methods: The dried and pulverised of SPM was extracted from root crude drug with 70% ethanol with ultrasound. Male Sprague-Dawley rats were divided into three groups (n = 10): normal group, hypoxia group (altitude of 4260 m), and hypoxia + SPM group (altitude of 4260 m, SPM of 1.0 g/kg/day). The experiment persisted for 4 weeks. The mean pulmonary arterial pressure (mPAP), hypoxia-inducible factor-1α (HIF-1α) mRNA, and lung pathology were analysed using pulmonary artery pressure recorde...
Authors: Qian X, Wang Z, Ning J, Qin C, Gao L, He N, Lin D, Zhou Z, Li G Abstract Context: Persimmon tannin (extract of Diospyros kaki L.f [Ebenaceae]) and Aloe gel (extract of Aloe vera (L.) Burm.f. [Asphodelaceae]) are known as anti-radiation agents. However, radiation resistance of the persimmon tannin-Aloe gel composite remains inconclusive.Objective: To investigate the capacity of the persimmon tannin-Aloe gel composite to protect against ionising radiation at the cellular level.Materials and methods: HaCaT (human epidermal keratinocytes) cells were pre-treated with PT-A-1 (the mass ratio of persimmon tannin a...
Conclusion: These results show PSD, R13, and PSA are good candidates as natural products for use in the treatment of lung cancer. Potential signalling pathways and protein targets need to be further validated. The application of the drug combination approach also provides a therapeutic strategy for cancer. PMID: 32476531 [PubMed - in process]