کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8881758 | 1624948 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Maturity, storage and ripening effects on anti-fungal compounds in the skin of 'Hass' avocado fruit
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Maturity, storage and ripening effects on anti-fungal compounds in the skin of 'Hass' avocado fruit Maturity, storage and ripening effects on anti-fungal compounds in the skin of 'Hass' avocado fruit](/preview/png/8881758.png)
چکیده انگلیسی
Fruit rots are a major risk to the quality of avocado fruit in international trade. For New Zealand-grown 'Hass' fruit, rots become increasingly problematic later in the harvest season. The presence of antifungal compounds, and associated compounds, in avocado fruit skin has been long documented, with much of the research done on fruit of the cultivar 'Fuerte'. In this paper, results are presented from an investigation of the effect of fruit maturity, storage and ripening on the concentration of the antifungal compound persin and compounds associated with its metabolism in the fruit skin of New Zealand grown 'Hass' avocado fruit. The persin concentration decreased markedly during maturation, with a â¼ 30% decrease in total persin (the combined persin and persenone-A), from â¼ 600âmgâkgâ1 at the early harvest to â¼ 400âmgâkgâ1 at the late harvest, approximately 4 months later. The concentration also decreased during storage and ripening, although the degree of change was dependent on the concentration present at harvest. Irrespective of harvest maturity or storage, the concentration of persin in the skin of ripe fruit did not decline below â¼ 200âmgâkgâ1. The epicatechin concentration declined by â¼ 17% and catechin by â¼ 50% between the early and late harvests. The total (epi)-catechin (the combined epicatechin and catechin monomers, epicatechin dimer B2, and (epi)-catechin oligomers) concentration declined by â¼ 20% between the early and late harvests, from â¼15.4âgâkgâ1 to 12.5âgâkgâ1. The changes with storage and / or ripening were of a smaller magnitude than the change with maturation. Also, the total (epi)-catechins concentration tended to increase slightly during storage. The findings are discussed in the context of the risk of rots in late season New Zealand-grown 'Hass' fruit based on previously described associations between changes in skin composition with fruit rot development.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Postharvest Biology and Technology - Volume 146, December 2018, Pages 43-50
Journal: Postharvest Biology and Technology - Volume 146, December 2018, Pages 43-50
نویسندگان
J. Bowen, D. Billing, P. Connolly, W. Smith, J. Cooney, J. Burdon,