Calcium and selenium enrichment during cultivation improves the quality and shelf life of Agaricus mushrooms.
Hartman, S. C.; Beelman, R. B.; Simons, S.;
Science and cultivation of edible fungi. Proceedings of the 15th International Congress on the Science and Cultivation of Edible Fungi, Maastricht, Netherlands, 15-19 May, 2000. Year: 2000 Pages: 499-505 Ref: 15 ref.
2000
บทคัดย่อ
Calcium chloride improves initial whiteness of mushrooms and reduces postharvest browning. Sodium selenite increases mushroom resistance to postharvest browning and enhances the nutritional value of mushrooms. The effects of adding Se and/or Ca to mushrooms on the quality of fresh and canned mushrooms were investigated. Se was added to irrigation water from casing to pinning, Ca was added to irrigation water from pinning through the third flush, Se + Ca were applied, and compared with tap water (control). Mushrooms were harvested on peak production days for the first 3 flushes. Production and quality attributes examined included: crop yield, initial and storage whiteness, solids content, canned product yield and Se and Ca content of fresh and canned mushrooms. Addition of Ca and/or Se all resulted in reduced postharvest browning. In the Ca + Se treatment, Se content was increased about 13-fold and Ca content by 2-fold compared with the control; mushrooms were whiter than those grown with either
element alone. When Ca or Se was added individually, several attributes exhibited negative trends. The Ca treatment slightly reduced crop yield while the Se treatment decreased solids content and canned product yield. When Ca and Se were both added, all these negative trends were reversed. The addition of Ca and Se to mushrooms via irrigation water is a cost-effective and safe means to improve quality and nutritional value.