title: Postharvest responses of red and yellow sweet peppers grown under photo-selective nets.
abstract: Postharvest responses of red ('HTSP-3') and yellow ('Celaya') sweet pepper fruit yield, quality parameters and bioactive compounds (to three types of photo-selective nets and a standard black net) were investigated in this study. Red and yellow peppers produced under the black net retained higher β-carotene, lower total phenolic contents and showed deep red and orange colour after storage. Both peppers produced under the pearl net retained a higher ascorbic content, antioxidant scavenging activity, fruit firmness and also reduced weight loss after storage. Red and yellow peppers grown under pearl and yellow nets resulted in a higher percentage of marketable fruit, after storage. Red pepper grown under the yellow net showed a higher number of odour active aroma compounds in the fruit, while black nets significantly affected the synthesis of odour active aroma compounds during storage. Sensory analysis indicated a preference for red pepper fruits after storage from plants grown under pearl nets.
authors.affiliation: Postharvest Technology Group, Department of Crop Sciences, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa.
authors.forename: Kamogelo M
authors.initials: KM
authors.lastname: Selahle
authors.affiliation: Postharvest Technology Group, Department of Crop Sciences, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa. Electronic address: SivakumarD@tut.ac.za.
authors.forename: Dharini
authors.initials: D
authors.lastname: Sivakumar
authors.affiliation: Postharvest Technology Group, Department of Crop Sciences, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa; Department of Horticultural Sciences, Vegetable and Fruit Improvement Center, Texas A&M, USA.
authors.forename: John
authors.initials: J
authors.lastname: Jifon
authors.affiliation: Postharvest Technology Group, Department of Crop Sciences, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa.
authors.forename: Puffy
authors.initials: P
authors.lastname: Soundy
mesh_terms: D000975:Antioxidants / Q000378:metabolism; D001205:Ascorbic Acid / Q000378:metabolism; D002212:Capsicum / Q000254:growth & development* / Q000378:metabolism* / Q000528:radiation effects; D061353:Food Storage; D010084:Oxidation-Reduction; D010636:Phenols / Q000378:metabolism; D019207:beta Carotene / Q000378:metabolism
chemical_list: D000975:Antioxidants; D010636:Phenols; D019207:beta Carotene; D001205:Ascorbic Acid
keywords: Aroma; Ascorbic acid; Capsicum annum L.; Soluble solids concentration; Total phenols