Microcrystalline cellulose is an important derivative of cellulosic material obtained from wood and non-wood sources, and is used for pharmaceutical, food, cosmetics, and other industries. The aim of this study was to determine the effect of various hydrochloric acid concentrations on the characteristics of cellulose microcrystals isolated from terap wood (Artocarpus elasticus). The microcrystalline cellulose was hydrolyzed using hydrochloric acid, at concentrations of 1.5 N, 2.5 N, and 3.5 N for 15 minutes, and within a temperature range of 100-105o C. Thesamples were then analyzed for changes in color and functional groups with Fourier Transform Infrared spectroscopy (FTIR), while crystallinity index was evaluated through X-Ray Diffraction Analysis (X-RDF). The FTIR results showed similarity with commercial products, while X-Ray Diffraction confirms the highest crystallinity index in the 2.5 N of cellulose I (69.395 %) and cellulose II (82.73 %).

The topic raised in this study was about the green GRDP in the agriculture sector of the food crops subsector in the Hulu Sungai Selatan regency. This research aims to find out the value of green GRDP in the agricultural sector of the food crop subsector in the Hulu Sungai Selatan regency. This research uses the analysis technique of Green GRDP calculation. According to the level of exploration, this type of research data is quantitative research and, according to the level of exploration, is descriptive research. The data used are secondary and are supported by primary data to supplement.The result of this study is the value of green GDRP in the agricultural sector of the reduction of conventional GRDP with depletion and degradation of soil resources. In addition, this study shows the high depletion and degradation value of land resources in the Hulu Sungai Selatan Regency makes the green GRDP value higher than the conventional GRDP value.