Assessment of the Nutritional Value of Stems and Leaves of Australian Adzuki Bean

Adzuki bean has recently been proposed as a viable dual-purpose (grain-and-graze) crop for the Northern regions of Australia because of its successful use in semi-arid regions and its nitrogen fixation capacity to improve soil fertility and animal nutrition. However, there are very few studies on th...

Full description

Saved in:
Bibliographic Details
Published in:Metabolites 2023-10, Vol.13 (10), p.1062
Main Authors: Johnson, Joel B, Batley, Ryan J, Neupane, Pasmita, Bhattarai, Surya P, Trotter, Tieneke, Costa, Diogo Fleury Azevedo, Naiker, Mani
Format: Article
Language:English
Subjects:
adzuki bean
Animal nutrition
azuki bean
Beans
Chemical composition
Crop diseases
Digestibility
Dry matter
Evaluation
Fermentation
flavonoids
Health aspects
Leaves
Legumes
Liquid chromatography
Livestock
Mass spectrometry
Mass spectroscopy
Mimosaceae
Nitrogen fixation
Nutritive value
phenolic acids
Phenolic compounds
Phytochemicals
Polyphenols
Quercetin
Quercetin-3-glucoside
Reproducibility
Rutin
Salicylic acid
Seeds
Soil fertility
Stems
Vigna angularis
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Adzuki bean has recently been proposed as a viable dual-purpose (grain-and-graze) crop for the Northern regions of Australia because of its successful use in semi-arid regions and its nitrogen fixation capacity to improve soil fertility and animal nutrition. However, there are very few studies on the phytochemical composition and nutritional value of the non-seed material. This study investigated the phenolic composition of the parts grown in the vegetative phase (leaves and stems) of nine Australian adzuki bean varieties for the first time. The total phenolic content (TPC) of the stem material (157–406 mg GAE/100 g) was 23–217% higher than that of commercial livestock feed, while the TPC of the leaf material (1158–1420 mg GAE/100 g) was 9–11 times higher. Using tandem liquid chromatography mass spectrometry (LC-MS), the major phenolic compounds identified were rutin, luteolin, salicylic acid, and quercetin-3-glucoside. The leaf and stem materials showed high levels of apparent in vitro dry matter digestibility, with no significant difference in total gas or methane production compared to lucerne hay. The results suggest that adzuki bean vegetative materials could be a high-value livestock fodder and support pursuing further in-depth studies into their nutritional value for livestock.
ISSN:2218-1989
2218-1989
DOI:10.3390/metabo13101062