食品科学2016，Vol.37Issue(20)：261-267,7.DOI:10.7506/spkx1002-6630-201620044
纳米包装材料对金针菇木质化及相关酶活性的影响
Effect of Nano-Packing on Lignification and Related Enzyme Activities ofFlammulina velutipes
摘要
Abstract
A polyethylene (PE) packing material containing nano-Ag, nano-TiO2, attapulgite and nano-SiO2 was prepared and applied in the preservation of Flammulina velutipes and its effects on sensory quality and lignification ofF. velutipes were determined during 14-day storage at 4 ℃. The influence of nano-packing material on the lignification of F. velutipeswas studied by tracking the changes in texture, weight loss, soluble protein contents, lignin contents, the activities of phenylalnine ammonialyase (PAL), cinnamyl alcohol dehydrogenase (CAD), and peroxidase (POD) as well as cell microstructure. The normal PE material was used as control. After 14 days of storage, the maximum shearing force, weight loss, PAL, CAD and POD activities ofF. velutipes packed with nano-packing material were 1.191 kg, 0.51%, 20.72 U/mg, 41.23 U/mg, 10.09 U/mg, respectively, which were significantly lower than those of the control (P< 0.05). On the other hand, the lignin content in nano-packaging samples increased by 4.7% while that in the control increased by 14.2% compared with the initial level. Nano-packing material has the potential to maintain the preservation quality and extend the shelf life ofF. velutipes by inhibiting the accumulation of lignin and increasing the related enzyme activities.关键词
金针菇/纳米材料/保鲜/木质化/货架期Key words
Flammulina velutipes/nano-packing/preservation/ligniifcation/shelf-life分类
轻工纺织引用本文复制引用
方东路,常诗洁,赵立艳,安辛欣,胡秋辉,杨文建..纳米包装材料对金针菇木质化及相关酶活性的影响[J].食品科学,2016,37(20):261-267,7.基金项目
江苏省自然科学基金项目（BK20141009）；国家自然科学基金青年科学基金项目 （）
