梨果实常温贮藏过程中的生化变化

Q3 Agricultural and Biological Sciences
Avninder Kaur, Sucheta Sharma, N. Singh
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引用次数: 2

摘要

“Patharnakh”(PN)(Pyrus pyrifolia Burm.Nakai)和“Punjab Beauty”(PB)【Pyrus commons L。水果收获期的昼夜温度和相对湿度较高,这对水果的保质期有很大影响。将生理成熟期收获的‘PN’和‘PB’梨果实在常温下贮藏12天,研究了贮藏温度对其物理和品质参数的影响。两个品种的果实重量和硬度、还原糖、蔗糖、淀粉和果胶含量都有所降低。然而,总可溶性固形物和果汁酸含量在储存过程中增加。‘PN’品种蔗糖合成酶活性与蔗糖含量呈显著正相关。果实软化酶如聚半乳糖醛酸酶(PG)和纤维素酶的活性增强;而果胶甲基酯酶(PME)在贮藏过程中降低。两个品种的果实硬度与PG呈负相关。在‘PN’品种中,果实硬度与纤维素酶呈正相关,与PME酶呈负相关,而在‘PB’品种中则相反。在贮藏过程中,两个品种的果实矿物质含量没有任何显著差异“Patharnakh”和“Punjab Beauty”水果在环境条件下储存期间,分别保持了6-9天和3-6天的理想质量参数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Biochemical changes in pear fruits during storage at ambient conditions
‘Patharnakh’ (PN) (Pyrus pyrifolia Burm. Nakai) and ‘Punjab Beauty’ (PB) [Pyrus communis L. × Pyrus pyrifolia Burm. (Nakai)] are leading low-chill pear cultivars of subtropics of India. Diurnal temperature and relative humidity during fruit harvest period is high which considerably affect the shelf life of fruits. Fruits of ‘PN’ and ‘PB’ pear harvested at physiological maturity were stored for 12 days at ambient temperature and effects of storage temperature on physical and qualitative parameters were studied. Both cultivars showed reduction in fruit weight and firmness, reducing sugars, sucrose, starch and pectin content. However, total soluble solids and juice acid content increased during storage. Sucrose synthase activity and sucrose content showed significant positive correlation in ‘PN’ cultivar. Activities of fruit softening enzymes such as polygalacturonase (PG) and cellulase was enhanced; whereas, pectinmethylesterase (PME) was reduced during storage. Fruit firmness was negatively correlated with PG in both the cultivars. In ‘PN’ cultivar, fruit firmness was positively correlated with cellulase and negatively with PME enzyme but reverse trend was observed in ‘PB’ cultivar. Fruit minerals content didn’t show any substantial disparities in both the cultivars during storage. ‘Patharnakh’ and ‘Punjab Beauty’ fruits maintain desirable quality parameters up to 6-9 days and 3-6 days, respectively, during storage at ambient conditions.
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来源期刊
Advances in horticultural science
Advances in horticultural science Agricultural and Biological Sciences-Horticulture
CiteScore
1.20
自引率
0.00%
发文量
15
审稿时长
12 weeks
期刊介绍: Advances in Horticultural Science aims to provide a forum for original investigations in horticulture, viticulture and oliviculture. The journal publishes fully refereed papers which cover applied and theoretical approaches to the most recent studies of all areas of horticulture - fruit growing, vegetable growing, viticulture, floriculture, medicinal plants, ornamental gardening, garden and landscape architecture, in temperate, subtropical and tropical regions. Papers on horticultural aspects of agronomic, breeding, biotechnology, entomology, irrigation and plant stress physiology, plant nutrition, plant protection, plant pathology, and pre and post harvest physiology, are also welcomed. The journal scope is the promotion of a sustainable increase of the quantity and quality of horticultural products and the transfer of the new knowledge in the field. Papers should report original research, should be methodologically sound and of relevance to the international scientific community. AHS publishes three types of manuscripts: Full-length - short note - review papers. Papers are published in English.
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