Addition of calcium chloride and stabilized chlorine dioxide to irrigation water to improve quality and shelf-life of Agaricus bisporus.
Solomon, J. M.; Beelman, R. B.; Bartley, C. E.;
Mushroom Science XIII. Volume 2. Proceedings of the 13th International congress on the science and cultivation of edible fungi. Dublin, Irish Republic, 1-6 September, 1991 Year: 1991 Pages: 695-701 Ref: 15 ref.
1991
บทคัดย่อ
Off-white and white hybrid type strains of A. bisporus were grown using 4 irrigation water treatments as follows: tap water (control); 50 p.p.m. stabilized chlorine dioxide; 0.25% calcium chloride and a combination of the 2 agents added together to tap water. Harvested mushrooms were placed in PVC-film overwrapped packages, stored at 13 deg C and samples were removed for analysis at regular intervals during the storage period. With white hybrid mushrooms, none of the treatments had significant effects on yield but postharvest quality and shelf life were significantly improved, especially by the combination treatment. Bacterial counts, browning, and senescence were significantly reduced with the use of the combination treatment. Calcium chloride, whether added separately or in combination with chlorine dioxide, reduced the yield of off-white hybrid mushrooms, but the combination treatment also resulted in a significant increase in size. Bacterial populations in the packs were significantly reduced by all experimental irrigation treatments, with the chlorine dioxide treatment providing the greatest reduction. Colour was significantly improved by the experimental irrigation treatments, with the calcium chloride treatment being the most effective. Senescence, as evidenced by cap expansion, was significantly reduced only by the addition of calcium chloride to the irrigation water. Results are tabulated and graphically presented.