新疆农业科学2017，Vol.54Issue(2)：243-253,11.DOI:10.6048/j.issn.1001-4330.2017.02.006
模拟运输振动对不同堆高哈密瓜果实质地品质的影响
Effects of Simulated Transport Vibration on the Texture Quality of Hami Melon at Different Stacking Heights
摘要
Abstract
[Objective] This study is designed to ascertain the effect on texture quality of Hami melon at different stacking heights by simulation of transport vibration in order to provide theoretical basis for refrigerated transport.[Method]Setting three treatment groups: top(9 boxes high),middle(5 boxes high)and bottom(1 box high).The immobile boxes were taken as the CK.The experiment lasted 14 d under 4-6℃ and the vibrational frequency was 7 Hz.Samples were checked every two days and the food texture was analyzed to measure the melon′s physical index,including hardness,adhesiveness,cohesiveness,elasticity,chewiness and elasticity modulus.Compared with CK,the vibration influence on the texture at different stacking heights of Hami melon was analyzed.[Result]The vibration had great influence on the pulp hardness,after continuous vibration 4 d,pulp hardness began to decrease sharply,the top′s dropped to 38.3％of the starting value.According to the degree,the order was: top>middle>bottom;The vibration had obvious influence on the adhesiveness,according to degree,the order was: top>bottom>middle;In the beginning of 4 d,the vibration postponed the decrease of melon′s cohesiveness,after 6 d,the vibration accelerated the decrease of melon′s cohesiveness;The pulp hardness dropped to the initial value of 38.3％.Vibration did not obviously influence the melon′s elasticity.According to the degree,the order was: top>middle>bottom;The vibration had obvious influence on the melon′s tackiness,after vibration for 4 d,each treatment group′s tackiness declined obviously,the bottom had the greatest decline,falling to 20.6％of the initial value;The vibration didn′t influence the melon′s chewiness and elasticity modulus obviously.Analyzing the texture parameters results showed that pulp hardness was positively correlated with chewiness and elasticity modulus(P<0.01),and it was positively correlated with tackiness(P<0.05),but adhesiveness was negatively correlated with elasticity;Cohesiveness was negatively correlated with elasticity;Tackiness was positively correlated with chewiness(P<0.01),and positively correlated with elasticity modulus(P<0.05);Chewiness was positively correlated with elasticity modulus(P<0.05).The result of one-way ANOVA showed that there were significant differences in the vibration influence on hardness,elasticity and chewiness at different stacking heights,and sorted by the impact size,the order was: top>middle> bottom.[Conclusion]Low frequency vibration could accelerate the softening of melon pulp,and this influence appears obvious 4 days later.The vibration has influence on melon′s texture at different stacking heights: top>middle> bottom.关键词
哈密瓜/振动/不同堆高/果实质地Key words
Hami melon/simulation of transport vibration/different stacking heights/texture quality分类
农业科技引用本文复制引用
徐斌,车凤斌,潘俨,张婷,张辉,吴吉林..模拟运输振动对不同堆高哈密瓜果实质地品质的影响[J].新疆农业科学,2017,54(2):243-253,11.基金项目
国家科技计划课题任务"瓜果产地全热交换差压预冷处理关键技术装备研究与示范"(2015BAD19B0104) （2015BAD19B0104）
新疆农业科学院青年科技基金项目"运用有限元法建立哈密瓜运输振动模型的研究"(xjnkq-2016011) The project task of national science and technology plan "The key technology and equipment research and demonstration of the whole heat transfer differential pressure cold treatment in melon and fruit producing areas "(2015BAD19B0104) （xjnkq-2016011）
Youth science and technology fund program of Xinjiang academy of agricultural sciences "Cantaloupe transportation vibration model by applying the method of finite element research"(xjnkq-2016011) （xjnkq-2016011）
