现代食品科技2017，Vol.33Issue(3)：155-161,265,8.DOI:10.13982/j.mfst.1673-9078.2017.3.024
振动胁迫对杏果实细胞壁物质代谢的影响
Impact of Vibration Stress on the Cell Wall Metabolism of Apricot Fruits
摘要
Abstract
Xinjiang "Saimaiti" apricot was the experimental material analyzed in this study.At a temperature of 4 ℃ and a relative humidity of 90％～95％,the apricot fruits with and without foam-net were placed on a homemade vibration table with a controllable amplitude and variable frequency.The vibration treatment was conducted horizontally and vertically at a simultaneous vibration frequency of 5 Hz to simulate vehicle vibration during transportation.The apricot fruits were vibrated for 12 h,24 h,and 48 h,and stored at 4 ℃ and 90 ％～95 ％ relative humidity.Fruits with no vibration were used as controls.Sampling was carried out every seven days,and fruit firmness,proto-pectin content,water-soluble pectin content,cellulose content,and polygalacturonase (PG),cellulase (Cx),and β-glucosidase activities were measured and the effect of vibration stress on the cell wall metabolism of the fruits was studied.The results showed that vibration stress could increase the water-soluble pectin content,cellulose content,as well as PG,Cx,and β-glucosidase activities of apricots.This also decreases the firmness and proto-pectin content of apricots,as well as accelerates the quality deterioration and softening process of apricots.Compared with no foam-net packaging,foam-net could inhibit the above physiological processes and increase the hardness of apricot fruits.This indicates that the cell wall metabolism and degradation of apricots with foam-net packaging were reduced more effectively than those without foam-net packaging during storage.关键词
杏/振动胁迫/软化/细胞壁物质代谢Key words
apricot/vibration stress/softening/cell wall metabolism引用本文复制引用
吴芳,程曦,王英,朱璇..振动胁迫对杏果实细胞壁物质代谢的影响[J].现代食品科技,2017,33(3):155-161,265,8.基金项目
国家自然基金项目(31460414) （31460414）
公益性行业(农业)科研专项(201303075) （农业）
