CAJ | 학술논문

将草莓分别进行壳聚糖1%-柠檬酸2%、壳聚糖1%-柠檬酸3%、壳聚糖1%-柠檬酸4%、空白对照4种方式涂膜处理,于4℃下贮藏5 d,对其采后生理指标(颜色、硬度、腐烂率、可溶性固形物、呼吸强度、过氧化物酶和多酚氧化酶活性等)进行测定。结果表明：壳聚糖涂膜能减缓草莓贮藏过程中的褐变程度,延缓草莓果肉的软化,降低草莓的腐烂率；壳聚糖处理的草莓样品组的呼吸强度分别由32.65,33.59,32.31 mL·(kg·h)-1升至69.98,62.42,64.63 mL·(kg·h)-1,而对照组的呼吸强度升至83.98 mL·( kg·h)-1,其中壳聚糖1%-柠檬酸4%涂膜液的保鲜效果最好。
장초매분별진행각취당1%-저몽산2%、각취당1%-저몽산3%、각취당1%-저몽산4%、공백대조4충방식도막처리,우4℃하저장5 d,대기채후생리지표(안색、경도、부란솔、가용성고형물、호흡강도、과양화물매화다분양화매활성등)진행측정。결과표명：각취당도막능감완초매저장과정중적갈변정도,연완초매과육적연화,강저초매적부란솔；각취당처리적초매양품조적호흡강도분별유32.65,33.59,32.31 mL·(kg·h)-1승지69.98,62.42,64.63 mL·(kg·h)-1,이대조조적호흡강도승지83.98 mL·( kg·h)-1,기중각취당1%-저몽산4%도막액적보선효과최호。
To determine of physiological and biochemical indexes ( such as color, hardness, rot-ting rate, soluble solids, respiratory rate, peroxidase ( POD) and polyphenol oxidase ( PPO) activity ) of strawberry, we conduct the treatments with strawberry under concentration of 1%chitosan and citric acid of different concentration (2%, 3%, 4% and water ) different concen-tration of 1% chitosan and citric acid of different concentration (2%, 3%, 4%) during storage at for 5 days. Experimental results showed that chitosan treatments have better fresh effects for strawberry in the storage The treatment with chitosan coating can decrease the degree of brown-ing, slow down the softening and reduce the rotting rate. The respiratory rate of the sample by chitosan coating is increased from 32. 65ml/(kg·h), 33. 59ml/(kg·h), 32. 31ml/(kg·h) to 69. 98ml/(kg·h), 62. 42ml/(kg·h), 64. 63ml/(kg·h)respectively, from o day to the fifth day, by comparing with the control sample reaching 83. 98ml/(kg·h) at the fifth day, the treatment of 1% - chitosan - 4%citric acid have the best fresh-keeping effect. remarkable compared with the control sample reached 83. 98ml/(kg·h) at the fifth day, the treatment of 1% - chitosan - 4%citric acid have the best effect.