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Yingchun Zhu,Kunsheng Zhang,Lizhen Ma,Nairui Huo,Hua Yang,Jiaomin Hao 한국식품과학회 2015 Food Science and Biotechnology Vol.24 No.4
Sensory, physicochemical, and microbiological changes of channel catfish patties stored under controlled freezing-point storage (CFPS) conditions at −1.5℃ for 10 weeks were analyzed to determine useful parameters for freshness evaluation and shelf-life determination. The sensory parameters of aerobic mesophilic and psychrophilic bacterial counts, physicochemical parameters of thiobarbituric acid, total volatile basic nitrogen, chewiness, ATP-ase activity, and the lightness parameter L* were correlated with storage time. Vacuum-packaged patties containing a cryoprotectant, natural antioxidants, and an antimicrobial mixture stored at −1.5℃ exhibited an extended shelf-life from a conventional 1-2 weeks to 6 weeks. Parameters that were correlated with storage time can be used as indicators of quality degradation of patties. CFPS combined with vacuum packaging offers an effective approach to extension of catfish product shelf-life.
Synthesis and Bioactivity of Quercetin Aspirinates
Lu, Chenjuan,Huang, Feng,Li, Zexin,Ma, Jinshuo,Li, Huanhuan,Fang, Lizhen Korean Chemical Society 2014 Bulletin of the Korean Chemical Society Vol.35 No.2
Hybrids of some natural compounds are promising to obtain new leads with good biological activities for drug discovery. Three quercetin aspirinates were synthesized by esterification of the 3-and 7-hydroxyl groups of quercetin with aspirin. Biological activities of these quercetin aspirinates were initially screened and showed better cytotoxic activities against tumor cell lines HL-60 and HepG2 and less scavenging activity against DPPH than the quercetin respectively.
Synthesis and Bioactivity of Quercetin Aspirinates
Chenjuan Lu,Feng Huang,Zexin Li,Jinshuo Ma,Huanhuan Li,Lizhen Fang 대한화학회 2014 Bulletin of the Korean Chemical Society Vol.35 No.2
Hybrids of some natural compounds are promising to obtain new leads with good biological activities for drug discovery. Three quercetin aspirinates were synthesized by esterification of the 3-and 7-hydroxyl groups of quercetin with aspirin. Biological activities of these quercetin aspirinates were initially screened and showed better cytotoxic activities against tumor cell lines HL-60 and HepG2 and less scavenging activity against DPPH than the quercetin respectively.