Vegetables and their by-products: total phenolic compound content, total flavonoids, and antioxidant activity

IF 0.7 4区农林科学 Q4 HORTICULTURE

Horticultura Brasileira Pub Date : 2023-02-03 DOI:10.1590/s0102-0536-2023-e2572

Luiza M Gomes, Alana MR Freitas, T. Dias, Rodrigo BM Cavalcante

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引用次数: 1

Abstract

ABSTRACT There is an underutilization of bioactive compounds, given the losses and daily waste of vegetables throughout the entire production chain. Accordingly, the objective of this study was to quantify the content of phenolic compounds and antioxidant capacity in different parts of vegetables. Analyzes were performed on five vegetables (zucchini, eggplant, broccoli, green cabbage and green beans) from conventional cultivation. The levels of total phenolics, total flavonoids, and antioxidant capacity were obtained by spectrophotometric methods. Except broccoli, the analyzed by-products had levels of bioactive compounds and antioxidant capacity equal to or greater than the traditional parts of vegetable. Broccoli florets stood out with the highest levels of total phenolics (141.22 mg GAE/100 g), total flavonoids (137.38 mg CE/100 g) and antioxidant capacity (588.3 µmol TEAC/100 g). In contrast, the lowest levels were observed in zucchini pulp (25.44 mg GAE/100 g; 13.03 mg CE/100 g; 69.78 µmol TEAC/100 g). Therefore, the importance of full consumption of vegetables is reiterated. By-products can also be used to enrich preparations.

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蔬菜及其副产品:总酚类化合物含量、总黄酮含量和抗氧化活性

鉴于蔬菜在整个生产链中的损失和日常浪费，生物活性化合物的利用不足。因此，本研究的目的是量化蔬菜不同部位酚类化合物的含量和抗氧化能力。对传统栽培的五种蔬菜(西葫芦、茄子、西兰花、青菜和四季豆)进行了分析。用分光光度法测定其总酚、总黄酮含量和抗氧化能力。除花椰菜外，分析的副产物的生物活性化合物和抗氧化能力等于或高于蔬菜的传统部分。西兰花中总酚含量最高(141.22 mg GAE/100 g)，总黄酮含量最高(137.38 mg CE/100 g)，抗氧化能力最高(588.3µmol TEAC/100 g)，西葫芦果肉含量最低(25.44 mg GAE/100 g;13.03 mg CE/100 g;69.78µmol TEAC/100 g)。因此，充分食用蔬菜的重要性得到了重申。副产品也可以用来充实制剂。

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来源期刊

Horticultura Brasileira 农林科学-园艺

CiteScore

1.40

自引率

28.60%

发文量

审稿时长

4-8 weeks

期刊介绍： The journal Horticultura Brasileira, a quarterly journal, is the Official Publication of the Sociedade de Olericultura do Brasil. Its abbreviated title is Hortic. bras., and it should be used in bibliographies, footnotes, references and bibliographic strips.