Determination of the chemical composition of seeds, peels, and seedcakes from two genotypes of Cape gooseberry (Physalis peruviana L.)

Authors : Venelina POPOVA, Zhana PETKOVA, Tanya IVANOVA, Magdalena STOYANOVA, Nikolay PANAYOTOV, Nadezhda MAZOVA, Albena STOYANOVA

Pages : 642-650

View : 19 | Download : 9

Publication Date : 2020-12-01

Article Type : Research Paper

Abstract :Physalis peruviana L. fruit insert ignore into journalissuearticles values(Cape gooseberry, CC); is a rich source of phytonutrients, including vitamins, minerals, polyphenols, polyunsaturated fatty acids insert ignore into journalissuearticles values(FAs);, phytosterols, dietetic fibers, and others. The popularity and production areas of CG have been expanding worldwide, thus producing fruit with origin-substantiated differences in their nutrient composition.This study was based on the comparative assessment of 2 genotypes of CG produced in Bulgaria insert ignore into journalissuearticles values(CG-P and CG-F);, through analysis of the lipid fraction of different fruit elements insert ignore into journalissuearticles values(seeds, peels);, and further examination of the extracted seedcakes. The CG seeds reasonably yielded more oil insert ignore into journalissuearticles values(17.0%-22.2%); than the isolated peels insert ignore into journalissuearticles values(2.8%-2.9%);. The main FAs in the CG-P seed oil were oleic insert ignore into journalissuearticles values(29.6%); and pahnitic insert ignore into journalissuearticles values(20.6%);, and in the CG-F seed oil were palm itic insert ignore into journalissuearticles values(20.9%); and stearic insert ignore into journalissuearticles values(17.5%);. Both CG peel oils were dominated by palmitic acid insert ignore into journalissuearticles values(43.0%-60.2%);, but there was a significant variation of some other FAs. The group of bioactivc tocopherols was found exclusively in the oil extracted from the CC seeds, with no significant difference between the genotypes;beta-tocopherol and 8-tocopherol were the most abundant. Waste from the oil extraction insert ignore into journalissuearticles values(the seedcakes); was found to contain high levels of macro and microminerals insert ignore into journalissuearticles values(K, Mg, Cu, Zn, Mn, and others);, fiber insert ignore into journalissuearticles values(40.26%-47.62%);, protein insert ignore into journalissuearticles values(13.73%-8.08%);, and essential amino acids, with some genotype-based variations. The results demonstrated that, concerning the studied aspects of fruit composition, CC produced in Bulgaria was comparable to the fruit of other origins; hence, they might be of practical interest to national agricultural and food producers, as well as to the food industry on a wider basis, as new details are added to the knowledge about CG fruit. The outcomes from the examination of the CG seedcakes were in favor of their potential in human and animal nutrition, and might serve as grounds for the development of new products.
Keywords : Physalis peruviana, seed oil, fatty acids, tocopherols, amino acids, minerals