Effectiveness of Corncob Liquid Smoke on Storagebility of Tomatoes and Mango

Abstract

Corncob waste is expected as a source of biomass to be converted through pyrolysis into liquid smoke, charcoal, and tar. The study aimed to determine the effectiveness of corncob liquid smoke on the storagebility of tomatoes and mango. The liquid smoke treatments, which consisted of 0, 1, 2, 3, and 4% were arranged in a randomized block design with four replications. Data analysis using ANOVA and Duncan's Multiple Difference Test. The study was conducted in two sets of experiments in parallel, on tomatoes and mangoes. The experimental results showed that pyrolysis for every 1,000 g of corncob waste produced 279.2, 396 and 5.86 g of liquid smoke, charcoal and tar, respectively. Then the redistillation results for every 1,000 mL of crude liquid smoke produce 850 mL of food grade liquid smoke. The liquid smoke treatment gave better storagebility than no treatment for tomatoes and mango. The storagebility was measured by holding weight loss, increase in total dissolved solids, intensity of pathological damage, and fruit appearance within 12 days of storage. In general, as a result of the treatment the increase in liquid smoke concentration from 1 to 4% was followed by an increase in the storagebility of tomatoes and mango.