Influence of cold-storage conditions on the quality of unshelled walnuts

被引:56
作者
Lopez, A [1 ]
Pique, MT [1 ]
Romero, A [1 ]
Aleta, N [1 ]
机构
[1] IRTA,CTR MAS BOVE,DEPT ARBORICULTURA MEDITERRANIA,E-43202 REUS,TARRAGONA,SPAIN
来源
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 1995年 / 18卷 / 08期
关键词
D O I
10.1016/0140-7007(96)81781-6
中图分类号
O414.1 [热力学];
学科分类号
摘要
In this work the influence of cold-storage conditions on unshelled walnut quality is studied. Quarterly, over a period of one year, the evolution of different walnut quality parameters has been analysed (kernel and whole walnut water content, faulty fruit presence, kernel colour, oil-free acidity, oxidative stability of the oil and fatty acids composition), in walnuts stored under two relative humidity conditions (40% and 60%) and three temperatures (3 degrees C, 7 degrees C and 10 degrees C). The assays have been repeated for two consecutive years. It was observed that the whole walnut quality was maintained, for a period of at least 12 months, at 10 degrees C and relative humidity conditions of 60%. With walnuts, cold storage at 40% relative humidity does not improve the final quality of the product, and causes a significant weight loss of dehydration. The tendency of the walnut kernel to darken depends on the variety and harvest or year.
引用
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页码:544 / 549
页数:6
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