Journal
BRITISH FOOD JOURNAL
Volume 116, Issue 3, Pages 544-567Publisher
EMERALD GROUP PUBLISHING LTD
DOI: 10.1108/BFJ-06-2012-0145
Keywords
Antioxidants; PCA; Physico-chemical properties; Pomegranate; Texture; Volatiles
Funding
- South African Research Chairs Initiative of the Department of Science and Technology
- National Research Foundation
- Citrogold Ltd South Africa
- Perishable Products Export Control Board (PPECB)
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Purpose - The purpose of this study was to characterize fruit properties of pomegranate cultivars grown in South Africa in order to provide information to assist in selecting cultivars for food and industrial purposes, as well as to optimize postharvest handling and processing. Design/methodology/approach - The physical, textural and chemical properties as well as volatile profile and free radical scavenging capacity of eight cultivars (cvs Acco, Arakta, Bhagwa, Ganesh, Herskawitz, Molla de Elche, Ruby, and Wonderful) were quantified to demonstrate the diversity among the characters of the commercially grown cultivars. Findings - Statistically significant differences were found between cultivars for most of the evaluated characters, primarily highlighting the genetic diversity among the cultivars. The classification of fruit cultivars based on quality traits (such as size, texture, colour, soluble solids, acidity, juiciness and phenolics) showed the great potential of the cultivars for processing and fresh market. The relationship among these quality traits was analysed by principal component analysis (PCA) resulting in the separation of the investigated cultivars into two groups (cluster 1 = Ruby, Arakta and Ganesh; Class 2 = Bhagwa, Acco and Herskawitz) and two ungrouped cultivars (Molla de Elche and Wonderful). Specific understanding about quality traits of each cultivar was established using the correlation coefficients obtained. Originality/value - This study provides valuable fundamental information that can be useful for commercial and industrial purposes, as well as the development of optimal postharvest handling and processing parameters for the investigated South African grown pomegranate cultivars.
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