Evaluation of Kaew Mango Clones for Processing of Dehydrated Fruit

Abstract

Kaew cultivar is the most important processing mango in Thailand.  The selection of mango clone for fruit processing industry is one of the alternative strategies to enhance its competitiveness in the market. The objective of this research was to evaluate Kaew mango clones suitable for the dehydrated fruit.  The 5 ongoing selecting clones were used in this study.  The fruits of all selected clones were directly harvested from the growers’ orchard in provinces of the Upper North.  Both fully mature and ripen fruits were taken to measure and analyze in the laboratory.  Thereafter, the fully mature fruits of all clones were processed to be dehydrated mango at Lampang Agricultural Research and Training Centre Rajamangala University of Technology, Lanna, Lampang province.  The product was proved its quality in accordance with the Thai Industrial Standard for dehydrated mango (TIS 919-2532). The required measurement was moisture content for dehydrated fruit in particular.  The products were finally assessed the organoleptic quality by using hedonic scale method with 15 trained panelists.  The result yielded that mango cv. Kaew MCC75 was the promising clone for dehydrated fruit.  This clone earned high scores from color, flavor, taste, texture and the highest scores from overall acceptance.  The outstanding characteristics suitable for processing included its medium size (4-6 fruits/kg) attractive and uniform color with dark green peel, high fruit firmness (14 kg/cm²), relative high TSS (8.72 ^oBrix), orangish yellow pulp, pH of pulp 3.54, high flesh weight (70.4%), and small seed in the fully mature fruit. The appropriate characteristics in particular for dehydrated product were the high remained pulp dry weight 453 g from 1,000 g of fresh weight. The finished product was deep yellow color, medium moisture content of 13.7%, good flavor, good taste and good texture.  This study also confirms that MCC75 or Kaew Chiang Mai is the suitable processing clone for farmers in the Upper North.