title: The Quality Changes of Postharvest Mulberry Fruit Treated by Chitosan-g-Caffeic Acid During Cold Storage.
abstract: This study aimed to characterize the effects of chitosan-g-caffeic acid (CTS-g-CA) on improving the quality and extending the shelf life of postharvest mulberry fruit during storage at 4 °C for 18 d. CTS-g-CA was enzymatically synthesized using laccase from Pleurotus ostreatus as a catalyst. The synergistic effects of CTS-g-CA treatment on mulberry fruit were evaluated using a co-toxicity factor (cf). The results showed that the rotting rate of CTS-g-CA-treated fruit was 37.67% (compared with that of the control at 97.67%) on day 18. The weight loss and malondialdehyde (MDA) contents of the CTS-g-CA-treated mulberry fruit were significantly lower (P < 0.05) than those of the control, CA, CTS, and CA+CTS treatments. Moreover, the DPPH and ABTS radical scavenging activities of the CTS-g-CA treatment were both higher than those of the control. Furthermore, the CTS-g-CA treatment also maintained higher levels of main active substances, such as anthocyanins, ascorbic acid, polyphenols and flavones, in mulberry fruit than the other treatments. Therefore, CTS-g-CA could be used to improve the quality and extend the shelf life of postharvest mulberry fruit during cold storage.
authors.affiliation: School of Biotechnology, Jiangsu Univ. of Science and Technology, Zhenjiang 212018, Jiangsu, China.|Sericultural Research Inst, Chinese Acad. of Agricultural Sciences, Zhenjiang 212018, Jiangsu, China.
authors.forename: Caifeng
authors.initials: C
authors.lastname: Yang
authors.affiliation: School of Biotechnology, Jiangsu Univ. of Science and Technology, Zhenjiang 212018, Jiangsu, China.|Sericultural Research Inst, Chinese Acad. of Agricultural Sciences, Zhenjiang 212018, Jiangsu, China.
authors.forename: Beibei
authors.initials: B
authors.lastname: Han
authors.affiliation: School of Biotechnology, Jiangsu Univ. of Science and Technology, Zhenjiang 212018, Jiangsu, China.|Sericultural Research Inst, Chinese Acad. of Agricultural Sciences, Zhenjiang 212018, Jiangsu, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zheng
authors.affiliation: School of Biotechnology, Jiangsu Univ. of Science and Technology, Zhenjiang 212018, Jiangsu, China.|Sericultural Research Inst, Chinese Acad. of Agricultural Sciences, Zhenjiang 212018, Jiangsu, China.
authors.forename: Lili
authors.initials: L
authors.lastname: Liu
authors.affiliation: School of Biotechnology, Jiangsu Univ. of Science and Technology, Zhenjiang 212018, Jiangsu, China.|Sericultural Research Inst, Chinese Acad. of Agricultural Sciences, Zhenjiang 212018, Jiangsu, China.
authors.forename: Changlong
authors.initials: C
authors.lastname: Li
authors.affiliation: School of Biotechnology, Jiangsu Univ. of Science and Technology, Zhenjiang 212018, Jiangsu, China.|Sericultural Research Inst, Chinese Acad. of Agricultural Sciences, Zhenjiang 212018, Jiangsu, China.
authors.forename: Sheng
authors.initials: S
authors.lastname: Sheng
authors.affiliation: School of Biotechnology, Jiangsu Univ. of Science and Technology, Zhenjiang 212018, Jiangsu, China.|Sericultural Research Inst, Chinese Acad. of Agricultural Sciences, Zhenjiang 212018, Jiangsu, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Zhang
authors.affiliation: School of Biotechnology, Jiangsu Univ. of Science and Technology, Zhenjiang 212018, Jiangsu, China.|Sericultural Research Inst, Chinese Acad. of Agricultural Sciences, Zhenjiang 212018, Jiangsu, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Wang
authors.affiliation: School of Biotechnology, Jiangsu Univ. of Science and Technology, Zhenjiang 212018, Jiangsu, China.|Sericultural Research Inst, Chinese Acad. of Agricultural Sciences, Zhenjiang 212018, Jiangsu, China.
authors.forename: Fuan
authors.initials: F
authors.lastname: Wu
mesh_terms: D000872:Anthocyanins / Q000032:analysis / Q000494:pharmacology; D000975:Antioxidants / Q000032:analysis / Q000494:pharmacology*; D001205:Ascorbic Acid / Q000032:analysis / Q000494:pharmacology; D052160:Benzothiazoles / Q000378:metabolism; D001713:Biphenyl Compounds / Q000378:metabolism; D002109:Caffeic Acids; D048271:Chitosan; D003080:Cold Temperature; D005511:Food Handling / Q000379:methods*; D005519:Food Preservation / Q000379:methods*; D061353:Food Storage / Q000379:methods; D005638:Fruit / Q000737:chemistry* / Q000592:standards; D006801:Humans; D008315:Malondialdehyde / Q000378:metabolism; D031625:Morus / Q000737:chemistry*; D010851:Picrates / Q000378:metabolism; D059808:Polyphenols / Q000032:analysis / Q000494:pharmacology; D012034:Refrigeration; D013451:Sulfonic Acids / Q000378:metabolism
chemical_list: D000872:Anthocyanins; D000975:Antioxidants; D052160:Benzothiazoles; D001713:Biphenyl Compounds; D002109:Caffeic Acids; D010851:Picrates; D059808:Polyphenols; D013451:Sulfonic Acids; C002502:2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid; D008315:Malondialdehyde; D048271:Chitosan; C004931:1,1-diphenyl-2-picrylhydrazyl; D001205:Ascorbic Acid; C040048:caffeic acid
keywords: chitosan-g-caffeic acid derivative; co-toxicity factor; cold storage; mulberry fruit; postharvest quality