Nutritional and phytochemical compositions and their interrelationship in succulent pods of pigeonpea (Cajanus cajan [L.] Millsp.)

被引：5

作者：

Gerrano, Abe Shegro ^{[1
,2
]}

Moalafi, Abueng A. ^{[1
]}

Seepe, Hlabana ^{[1
]}

Amoo, Stephen ^{[1
,3
,4
]}

Shimelis, Hussein ^{[5
]}

机构：

[1] Agr Res Council Vegetables, Ind & Med Plants, Private Bag X293, ZA-0001 Pretoria, South Africa

[2] North West Univ, Fac Nat & Agr Sci, Food Secur & Safety Area, Mmabatho, South Africa

[3] Univ Johannesburg, Fac Sci, Dept Bot & Plant Biotechnol, Johannesburg, South Africa

[4] North West Univ, Fac Nat & Agr Sci, Indigenous Knowledge Syst Ctr, Private Bag X2046, ZA-2735 Mmabatho, South Africa

[5] Univ KwaZulu Natal, African Ctr Crop Improvement, Private Bag X01,Scottsville, ZA-3209 Pietermaritzburg, South Africa

来源：

HELIYON | 2022年 / 8卷 / 03期

关键词：

Cluster analysis; Mineral elements; Pigeonpea; Phytochemicals; Principal component analysis;

D O I：

10.1016/j.heliyon.2022.e09078

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Malnutrition remains one of the major human health issues affecting millions of people in sub-Saharan Africa (SSA). Hence, the objective of this study was to quantify the nutritional and phytochemical compositions of immature pods of pigeonpea genotypes to select promising lines with unique nutritional quality for production and cultivar development. Seven preliminarily tested and identified pigeonpea genotypes were grown under field conditions using a randomized complete block design with three replicates to quantify the nutritional and phytochemical contents in the immature pods. Significant (P < 0.01) genotype effect was detected for the assessed nutritional and phytochemical compositions. Relatively higher contents of iron (15.53 mg/100g), zinc (1.59 mg/ 100g), magnesium (114.60 mg/100g) and total flavonoid (8.47 mg CE/g) were present in genotype Ilonga_14m1 ICEAP-0054. Higher compositions of beta-carotene (2.84 mg/100g), total phenolics (20.42 mg GAE/g), and vitamin-C (95.84 mg/100g) were detected in genotypes, Mali ICEAP-00046, PigeonP-3018 and Kiboko ICEAP00932, respectively. Cluster analysis allocated the tested genotypes into three main groups. Significant (P < 0.05) positive correlations were recorded among the assessed nutritional and phytochemical compositions that will allow direct and indirect selection of the evaluated genotypes for nutritional and phytochemical quality improvement. The principal component analysis resolved four components that cumulatively explained 76.85% of the total genetic variation in nutritional and phytochemical compositions among the tested genotypes of pigeonpea. Genotype PigeonP-3021 exhibited high levels of beta-carotene and vitamin C, while Kiboko ICEAP00932 and PigeonP-3018 had high contents of aluminium, iron, phosphorus and total phenolics. Genotype Ilonga_14m1 ICEAP-0054 had high compositions of zinc, potassium, magnesium, copper and calcium. Unique pigeonpea genotypes (i.e., PigeonP-3021, Kiboko ICEAP-00932, and PigeonP-3018) were identified for quality breeding or direct production with promising nutrient profiles for food and nutrition security.

引用

页数：7

共 31 条

[1] Antioxidant and acetylcholinesterase-inhibitory properties of long-term stored medicinal plants [J].