叶面喷施生物刺激剂可提高核桃的营养和生物活性质量。

IF 3.5 2区农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY

Journal of the Science of Food and Agriculture Pub Date : 2024-09-30 DOI:10.1002/jsfa.13904

Liege Aguiar Pascoalino, Tânia CSP Pires, José Pinela, Manuel Ângelo Rodrigues, Isabel CFR Ferreira, Lillian Barros, João CM Barreira, Filipa S Reis

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引用次数: 0

摘要

背景：由于核桃对健康有益，因此作为营养餐的上佳选择备受关注，从而促进了核桃的生产。此外，生态和环境友好型农业的采用加强了生物刺激剂的使用，使其成为传统肥料的可持续补充。本研究评估了葡萄牙东北部核桃树果园中不同叶面喷施生物刺激剂对核桃化学成分和生物活性的影响：核桃样品富含脂肪（尤其是多不饱和亚油酸）、膳食纤维和蛋白质。蔗糖是最常见的可溶性糖，其次是葡萄糖和果糖。研究样本还显示出与 Trolox 相当（或更优）的抗氧化活性。一些植物生物刺激剂（如 Sprint Plus®）对核桃的营养成分有积极影响，特别是通过提高生育酚水平，此外还提高了核桃提取物对特定细菌的生物活性：总之，这项研究表明，使用可持续农业生物产品和方法可以改善核桃的重要质量特性。© 2024 化学工业协会。

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Foliar application of biostimulants improves nutritional and bioactive quality of walnuts

BACKGROUND

Owing to their health benefits, walnuts are attracting interest as a good option for nutritious meals, thereby promoting their production. Furthermore, the adoption of ecologically and environmentally friendly agriculture strengthens biostimulant use as a sustainable complement to traditional fertilizers. This study evaluated the effects of different foliar-applied biostimulants in walnut tree orchards, in northeastern Portugal, on walnuts' chemical composition and bioactivity.

RESULTS

Walnut samples were rich in fat (particularly the polyunsaturated linoleic acid), dietary fiber and protein. Sucrose was the most prevalent soluble sugar, followed by glucose and fructose. Studied samples also showed an antioxidant activity comparable (or superior) to that of Trolox. Some plant biostimulants (e.g. Sprint Plus®) had a positive impact on the nutritional composition of walnuts, more specifically by boosting tocopherol levels, besides improving the bioactivity of walnut extracts against specific bacteria.

CONCLUSION

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来源期刊

Journal of the Science of Food and Agriculture 工程技术-农业综合

CiteScore

8.10

自引率

4.90%

发文量

634

审稿时长

3.1 months

期刊介绍： The Journal of the Science of Food and Agriculture publishes peer-reviewed original research, reviews, mini-reviews, perspectives and spotlights in these areas, with particular emphasis on interdisciplinary studies at the agriculture/ food interface. Published for SCI by John Wiley & Sons Ltd. SCI (Society of Chemical Industry) is a unique international forum where science meets business on independent, impartial ground. Anyone can join and current Members include consumers, business people, environmentalists, industrialists, farmers, and researchers. The Society offers a chance to share information between sectors as diverse as food and agriculture, pharmaceuticals, biotechnology, materials, chemicals, environmental science and safety. As well as organising educational events, SCI awards a number of prestigious honours and scholarships each year, publishes peer-reviewed journals, and provides Members with news from their sectors in the respected magazine, Chemistry & Industry . Originally established in London in 1881 and in New York in 1894, SCI is a registered charity with Members in over 70 countries.