This research aims to assess the sustainability and feasibility of the production of Pleurotus ostreatus using ground coffee seed and pulp waste as substrate, and then demonstrating its economic profitability. Different raw materials were characterized as substratum and technical aspect production in the greenhouse for P. ostreatus were analyzed with the economic analysis for financing the project. With this technique, we found an option of sustainable model production, which concedes added value to the agricultural wastes from coffee processing once is used as a source of substrates for the production of Pleurotus ostreatus. The results obtained from the production of mushrooms through the waste from ground coffee and pulp are feasible and profitable in San Salvador. The use of coffee waste in the production of mushrooms will reduce the waste or biomass resulting from the coffee industry, therefore, it is a sustainable alternative in environmental terms. Moreover, economic analyses from PI's were 3.047052287, given that it was >1, consequently, the project was accepted, while the IRR was

Morphological and physico-chemical characterization of the fruit of Melicoccus bijugatus were studied. To estimate more accurate data of fruit of Melicoccus bijugatus 11 variables were valued in two different stages of maturity ripe and unripe: shelled weight, shell weight, juice weight, pulp weight, seed weight, fruit length (cm), fruit diameter (cm), thickness (mm), shell thickness (mm), seed color and seed shape. In order to obtain these analytical scales and calibrators data, the two maturity stages by tabulating and analyzing all the information collected were compared and taken into consideration the maturity index to determine the optimum point of harvest. The shell weight, juice weight, pulp weight, seed weight, fruit length, fruit diameter and shell thickness were obtained higher in the ripe fruit than the unripe fruit, when the fruits have reached 69% of maturity, recommended as optimal percentage of maturity. Bangladesh J. Bot. 50(2): 387-394, 2021 (June)