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Pre- and postharvest treatments for the quality assurance of African indigenous leafy vegetables

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Pre- and postharvest treatments for the quality assurance of African indigenous leafy vegetables (Volume 41)

Elisha Otieno Gogo (Author)

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ISBN-13 (Hard Copy) 9783736996502
ISBN-13 (eBook) 9783736986503
Language English
Page Number 160
Lamination of Cover matt
Edition 1.
Book Series Berliner ökophysiologische und phytomedizinische Schriften
Volume 41
Publication Place Göttingen
Place of Dissertation Humboldt-Universität Berlin
Publication Date 2017-11-01
General Categorization Dissertation
Departments Agricultural science
Plant production
Keywords postharvest, treatments, African
Description

Inadequate pre- and postharvest treatments of agricultural produce are one of the central problems developing countries are facing resulting in low yield and poor quality African indegenous leafy vegetables (AIVs). AIVs are rich in nutritional and health promoting plant compounds such as vitamins, minerals, proteins, dietary fibre and antioxidant compounds. However, due to high perishability and low storage capacity in fresh form, AIVs suffer significant loss in quantity and quality. Aim of the present study was to assess the situation of postharvest losses during AIVs supply chain (from smallholder farmer to consumer), determine the amount of postharvest loss (quantitave and nutritional) along the supply chain in Kenya. Thereafter, a series of studies were conducted on pre-harvest (electric current) and postharvest (UV-C irradiation) treatments to determine their effects on primary compounds (chlorophylls, mineral elements, proteins and dietary fibre) and secondary metabolites (carotenoids, flavonoids, phenolic acids, phenolic compounds, glutathione peroxidase (GPOX), and vitamin E) and microbial status as well as antioxidant capacity, in order to strengthen a product quality and safety oriented food supply chain. The study focussed mainly on two commonly consumed AIVs i.e. Vegetable amaranth (Amaranthus cruentus L. cv. Madiira) and African nightshade (Solanum scabrum Mill. cv. Olevolosi).