张建金 樊东隆 吕剑 孙述俊 李振谋 张斌祥

摘要：以白银地区自然条件及日光温室发展历史为切入点，列举了甘肃省中部白银市沿黄灌区具有代表性的几种不同“靖远日光温室”结构。从日光温室发展历程与结构演变的角度梳理分析了靖远县以及白银市日光温室探索与建设所经历的三个阶段，温室结构和性能改良方面的成果。对适宜在白银沿黄地区不同结构日光温室的性能进行了分析评价。

关键词：日光温室;温室结构;前屋面;后屋面;墙体;白银市

中图分类号：S625.1       文献标志码：A       文章编号：1001-1463（2021）08-0084-06

doi：10.3969/j.issn.1001-1463.2021.08.018

Abstract：The effects of different storage time and storage conditions on the texture and sensory properties of white yak milk hard cheese were studied using white yak milk as raw material. The results showed that the degree of protein hydrolysis of white yak cheese during the storage period continued to increase， and the texture of white yak milk cheese also changed with the change of protein mesh structure. Through measured the texture such as the chewiness， cohesiveness， and stickiness of the cheese during the storage period， and comparative analysis shows that the hardness of cheese was extremely significant at 5 ℃ and 15 ℃ storage temperature（P < 0.01）， the chewiness of cheese stored for 90 days was significantly different from that stored for 60 days and 150 days（P < 0.05）， the stickiness of cheese had significant differences in different storage periods and temperatures（P  < 0.05）， however， there were no significant differences with adhesion， elasticity and cohesiveness under different storage periods and temperatures（P < 0.05）. Combined with sensory evaluation， the optimal ripening time of yak milk hard cheese was 90 days， the optimal storage temperature was 10 ℃， the palatability was the best， and it had better flavor and taste.

Key words：White yak milk;Hard cheese;Texture;Sensory value

随着科学技术的进步，新型保温材料、增温设备、温室结构理论等不断创新发展，以及广大农业科研人员坚持不懈的努力，使得高效节能日光温室有了长足发展。近年来，新型节能日光温室的不断引进、研究、结构优化、改良示范、推广应用，为白银市农业产业结构调整、农村经济发展，特别是蔬菜产业的发展做出了巨大贡献。伴随着新型保温材料、增温设备、温室结构理论等技术装备的创新发展，白银市引进研究、优化改良、示范推广不同日光温室结构，日光温室由一坡一立式结构逐渐发展到新型全钢骨架装配式土墙结构，结构更加合理，性能更加优良，建造技术更加成熟。

日光温室作为反季节蔬菜生产设施，以其经济、高效、节能成为农民增加收入的重要手段之一[1 ]。日光温室是我国北方冬季最主要的反季节栽培设施，为解决北方冬季蔬菜供应、改善人民生活发挥了巨大作用[2 ]。……