The Effects of Light Exposure on Solanine Content of Detergent-Treated Potato Tubers (Solanum Tuberosum L.)

Abstract

Solanine is a toxic glycoalkaloid in potatoes most causes abundant in the peel. It green blotches (greening) on the skin of potatoes and large amounts are unsafe for consumption. The effects of forms of detergent (powder, bar and liquid), duration of light (0, 48" and 240" hour), and type of light (artificial and natural) on solanine concentration of potatoes were determined in the study. A modified Baker, Lampitt & Meredith method was used in extracting solanine. Absorbance values were measured through spectrophotometry and were plotted using the standard curve of Gull & Isenberg to determine solanine concentration. ANOVA. in CRD and Multiple Factorial Experiment were used to statistically analyze the data. Different detergent forms were found to have relatively the same effects on inhibition of solanine content. Solanine concentration increased with increasing light intensity and exposure time. Artificial light induced more solanine production than natural light. Treatment of potatoes with detergent solutions inhibited solanine concentration as much as 62%.