Increase of tocopherols, phytosterols, and carotenoids in high-oil subtropical maize after recurrent selection

IF 2.2 4区农林科学 Q3 CHEMISTRY, APPLIED

Cereal Chemistry Pub Date : 2023-09-26 DOI:10.1002/cche.10720

Silverio García-Lara, Abel Rodríguez-Treviño, Sofia Ortíz-Islas, Ricardo E. Preciado-Ortíz, Sergio O. Serna-Saldívar

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Abstract

Subtropical high‐oil maize (HOM) genotypes have been successfully developed but further evaluation of the content of liposoluble nutraceuticals is essential. The aim of this study was to determine the concentration and profile of tocopherols, phytosterols and carotenoids in HOM and the effects of high‐oil selection in white and yellow subtropical populations.Results indicated that recurrent selection increase of germ proportion (9 to 12%) in total kernel had a direct effect in oil content and increased contents of carotenoids, tocopherols and phytosterols. Particularly, carotenoids improved only in yellow populations with an improvement in total carotenoid (from 13 to 17 of mg/kg dw), provitamin A, β‐carotenes and β‐cryptoxanthin. α‐ and γ‐tocopherols had an overall increase in total content (up to 39 mg/kg dw). Total phytosterols increased significantly in both populations with similar changes in composition (up to 374 mg/kg dw). β‐sitosterol was the predominant phytosterol associated with HOM.Recurrent selection for high‐oil in subtropical maize effectively altered the liposoluble nutraceuticals compounds of improved kernels in terms of carotenoids, tocopherols and phytosterols with modifications in their profiles.This research demonstrated that recurrent selection is an effective traditional breeding tool that improved oil, tocopherols, phytosterols and carotenoids in subtropical maize. This investigation is a first step for understanding how the improvement of oil content affects the lipophilic nutraceuticals content.This article is protected by copyright. All rights reserved.

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重复选择后高油亚热带玉米中生育酚、植物甾醇和类胡萝卜素的增加

背景与目的亚热带高油玉米（HOM）基因型已被成功开发，但对脂溶性营养品的含量进行进一步评估是必要的。本研究的目的是确定HOM中生育酚、植物甾醇和类胡萝卜素的浓度和分布，以及高油选择对白色和黄色亚热带种群的影响。结果表明，重复选择增加胚芽在总仁中的比例（9%-12%）对含油量有直接影响，并增加了类胡萝卜素、生育酚和植物甾醇的含量。特别是，类胡萝卜素仅在黄色种群中得到改善，总类胡萝卜素（从13毫克/公斤提高到17毫克/公斤干重[dw]）、维生素原A、β-胡萝卜素和β-隐黄质。α-和γ-生育酚的总含量总体增加（高达39 毫克/千克 dw）。总植物甾醇在两个种群中都显著增加，成分变化相似（高达374 毫克/千克 dw）。β-谷甾醇是与HOM相关的主要植物甾醇。结论对亚热带玉米高油的反复选择有效地改变了改良玉米粒的脂溶性营养成分中类胡萝卜素、生育酚和植物甾醇的含量，并改变了它们的图谱。意义和新颖性这项研究表明，重复选择是一种有效的传统育种工具，可以改善亚热带玉米的油脂、生育酚、植物甾醇和类胡萝卜素。这项研究代表着了解油含量的提高如何影响亲脂性营养品含量的第一步。

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来源期刊

Cereal Chemistry 工程技术-食品科技

CiteScore

5.10

自引率

8.30%

发文量

110

审稿时长

3 months

期刊介绍： Cereal Chemistry publishes high-quality papers reporting novel research and significant conceptual advances in genetics, biotechnology, composition, processing, and utilization of cereal grains (barley, maize, millet, oats, rice, rye, sorghum, triticale, and wheat), pulses (beans, lentils, peas, etc.), oilseeds, and specialty crops (amaranth, flax, quinoa, etc.). Papers advancing grain science in relation to health, nutrition, pet and animal food, and safety, along with new methodologies, instrumentation, and analysis relating to these areas are welcome, as are research notes and topical review papers. The journal generally does not accept papers that focus on nongrain ingredients, technology of a commercial or proprietary nature, or that confirm previous research without extending knowledge. Papers that describe product development should include discussion of underlying theoretical principles.