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Research article - Peer-reviewed, 2021

Carotenoid Extraction from Locally and Organically Produced Cereals Using Saponification Method

Hussain, Abrar; Larsson, Hans; Johansson, Eva;

Abstract

Carotenoids are important phytochemicals contributing nutritional health benefits in the human diet, with a significant contribution from cereals as one of the major food component around the world. Different methods have been described and adopted for the extraction and isolation of carotenoid compounds. Saponification can be seen as an option for carotenoid extraction from cereals as it converts retinol esters to retinol and removes other abundant compounds such as triglycerides. Extraction of carotenoids content of locally adapted and organic cereals have been limitedly investigated and was, therefore, evaluated in the present study, with a specific aim to understand genotypic and local cultivation effects and interactions. Therefore, 17 diverse cereal genotypes of local origin were grown organically in four localities and evaluated for carotenoid content and composition by HPLC. The results showed a large variation in content and composition of carotenoids in locally adapted and organically grown cereal genotypes, with lutein as the dominating type in wheat and rye, while zeaxanthin was the dominating type in barley. High-level genotypes showed values (9.9 mg/kg of total carotenoids) similar to the highest values previously reported in specific types of wheat. The barley genotypes showed relatively high stability in carotenoids content within and between cultivation locations, while large interactions were found with the cultivation location for the rest of the genotypes, indicating their local adaptation. The local adaptation of the cereal genotypes evaluated contributes large opportunities for local production of high value, highly nutritious food products, while the direct value of these genotypes for conventional plant breeding for varieties performing similar over broad environmental ranges, are more limited.

Keywords

organic wheat genotypes; saponification; carotenoids; lutein content; environmental effects

Published in

Processes

2021, volume: 9, number: 5, article number: 783
Publisher: MDPI

Authors' information

Hussain, Abrar
COMSATS Institute of Information Technology
Swedish University of Agricultural Sciences, Department of Plant Breeding
Swedish University of Agricultural Sciences, Department of Plant Breeding

Sustainable Development Goals

SDG2 Zero hunger

UKÄ Subject classification

Food Science

Publication Identifiers

DOI: https://doi.org/10.3390/pr9050783

URI (permanent link to this page)

https://res.slu.se/id/publ/112071