核桃干燥过程中品质变化机理与优化途径的研究

Walnut has become the pillar industry of Xinjiang's economic development as a region characteristics fruit. However, the development of walnut industry was seriously hampered by the limits of automaticity and quality control technology of walnut drying in Xinjiang. This project is established to solve the problems of quality control and optimization in Xinjiang's main varieties walnut drying; the first, use the quality change law of walnut under various drying condition as the pointcut, to reveals the influence law of different drying elements of w lect the key elements of influence in the quality of drying walnuts, and clarify the optimal regulation mechanism of the walnut drying processing; the second, the quality change kinetics of walnut drying under different conditions will be researched, to reveal the dynamic change rule of quality index under various drying conditions, and resolve the key points and optimize control strategies of quality optimize control; finally, explore the relationship of walnut color change dynamics, enzyme content dynamics and drying kinetics, and obtain dynamic change information of quality timely to provide the basis for quality control. The research can provide scientific basis and theoretical support for quality optimize control in walnut drying processing, and has important research value for improve walnut quality in drying processing.

核桃作为新疆地区特色林果之一，已成为新疆经济发展的支柱产业。然而，核桃干燥自动化和干燥品质控制技术的落后已严重制约新疆核桃产业的发展。项目以解决新疆主栽核桃品种在干燥过程中品质优化调控所涉及相关问题为目标，首先以研究核桃在不同干燥条件下，品质的变化规律为切入点，揭示不同干燥要素对核桃品质的影响规律，筛选出影响核桃品质的关键干燥要素，阐明核桃干燥加工中优化调控品质的机理；其次研究核桃在不同关键干燥条件下品质变化的动力学，揭示干燥过程中，各外部干燥条件下，品质指标的动态变化规律，解析优化调控品质的关键点和最优调控策略；最后探索核桃色泽变化动力学与酶含量变化动力学和干燥动力学的相关关系，以及时获取品质的动态变化信息为品质调控提供依据。为实现核桃干燥过程中的品质优化调控提供科学依据和理论支持，对核桃干燥加工生产中提高核桃品质，具有重要的研究价值。

项目以解决新疆主栽核桃品种在干燥过程中品质优化调控所涉及相关问题为目标，以研究核桃在不同干燥条件下，不同干燥要素对核桃品质的影响规律，筛选影响核桃品质的关键干燥要素，阐明核桃干燥加工中优化调控品质的机理；研究核桃在不同关键干燥条件下品质变化的动力学，揭示干燥过程中，各外部干燥条件下，品质指标的动态变化规律，解析优化调控品质的关键点和最优调控策略,为品质调控提供依据。本项目通过一系列实验研究及分析，阐明了不同干燥要素对核桃品质的影响规律，筛选出了热风温度、风速、装料深度影响核桃品质的关键干燥要素，通过研究核桃热风干燥动力学模型和色泽变化模型，阐明了核桃干燥加工中优化调控品质的机理，并确定了采用箱式核桃干燥装置进行干燥时的干燥工艺条件，已取得一批有特色、有影响的成果。项目始终按计划展开工作，发表6篇论文，出版2本著作；获得授权的发明专利3项，授权的实用新型专利5项,发布国家行业标准2项，获得新疆维吾尔自治区科学技术进步一等奖1项，全国农牧渔业丰收奖一等奖1项。培养高级职称3人，技术骨干6人。