Effect of salicylic acid（SA）on chilling injury（CI）of sponge gourd during storage（9 days,9°C）plus shelf life（2 days,20°C）was evaluated in this study.SA treatment at the concentration of 1.5 mmol L^-1 ...Effect of salicylic acid（SA）on chilling injury（CI）of sponge gourd during storage（9 days,9°C）plus shelf life（2 days,20°C）was evaluated in this study.SA treatment at the concentration of 1.5 mmol L^-1 significantly reduced postharvest CI of sponge gourds.Besides,the application of SA could effectively decrease the electrolyte leakage,reduce the accumulation of malondialdehyde（MDA）and total phenolics,enhance the activities of antioxidant enzymes such as superoxide dismutase（SOD）,catalase（CAT）and ascorbate peroxidase（APX）,and inhibit the activities of phenylalanine ammonia-lyase（PAL）and polyphenol oxidase（PPO）.The beneficial effects of SA could be attributed to preserved membrane integrity,inhibited membrane peroxidation,enhanced antioxidant system and suppressed activities of browning related enzymes.In a sense,SA as a postharvest tool may be commercially used in alleviating CI of sponge gourd.展开更多
In this present work, the study of mechanical and micro-structural effect on alkaline treated sponge gourd fibre epoxy composite has been investigated experimentally. Composite laminates are fabricated by hand lay-up ...In this present work, the study of mechanical and micro-structural effect on alkaline treated sponge gourd fibre epoxy composite has been investigated experimentally. Composite laminates are fabricated by hand lay-up technique. Scanning Electro Microscope analysis on the composite materials is performed. A group of neat epoxy samples is fabricated for comparison purpose. Samples are analysed for their mechanical properties to establish an alkaline effect on sponge gourd. Indeed, a maximum value of strength and strain is observed over 20% filler loading for 24 hrs treated fibre composite.展开更多
基金supported by the Ministry of Agriculture of China (CARS-25)the Special Fund for Agro-scientific Research in the Public Interest, China (201203095)+2 种基金the National Natural Science Foundation of China (31401536)the Natural Science Foundation of Beijing, China (6144020)the Young Investigator Fund of Beijing Academy of Agricultural and Forestry Sciences of China (201404)
文摘Effect of salicylic acid（SA）on chilling injury（CI）of sponge gourd during storage（9 days,9°C）plus shelf life（2 days,20°C）was evaluated in this study.SA treatment at the concentration of 1.5 mmol L^-1 significantly reduced postharvest CI of sponge gourds.Besides,the application of SA could effectively decrease the electrolyte leakage,reduce the accumulation of malondialdehyde（MDA）and total phenolics,enhance the activities of antioxidant enzymes such as superoxide dismutase（SOD）,catalase（CAT）and ascorbate peroxidase（APX）,and inhibit the activities of phenylalanine ammonia-lyase（PAL）and polyphenol oxidase（PPO）.The beneficial effects of SA could be attributed to preserved membrane integrity,inhibited membrane peroxidation,enhanced antioxidant system and suppressed activities of browning related enzymes.In a sense,SA as a postharvest tool may be commercially used in alleviating CI of sponge gourd.
文摘In this present work, the study of mechanical and micro-structural effect on alkaline treated sponge gourd fibre epoxy composite has been investigated experimentally. Composite laminates are fabricated by hand lay-up technique. Scanning Electro Microscope analysis on the composite materials is performed. A group of neat epoxy samples is fabricated for comparison purpose. Samples are analysed for their mechanical properties to establish an alkaline effect on sponge gourd. Indeed, a maximum value of strength and strain is observed over 20% filler loading for 24 hrs treated fibre composite.
