Penelitian ini telah dilaksanakan di Desa serosa, Kecamatan Hulu Kuantan, pada tangga 24 januari 2019. Penelitian ini bertujuan untuk mengetahui pengaruh tandan kosong kelapa sawit dengan penambahan kotoran ternak sapi menggunakan Rancangan Acak Lengkap (RAL) Non Faktorial 6 taraf perlakuan yaitu: A0 (Tandan Kosong Kelapa Sawit 100%), A1 (Tandan Kosong Kelapa Sawit 90% + Kotoran Sapi 10%), A2 (Tandan Kosong Kelapa Sawit 80% + Kotoran Sapi 20%), A3 (Tandan Kosong Kelapa Sawit 70% + Kotoran Sapi 30%), A4 (Tandan Kosong Kelapa Sawit 60% + Kotoran Sapi 40%), A5 (Tandan Kosong Kelapa Sawit 50% + Kotoran Sapi 50%). Data hasil pengamatan dari masing-masing perlakuan dianalisis secara statistik, dan apabila berbeda nyata akan dilanjutkan dengan Uji Lanjut Beda Nyata Jujur (BNJ) pada taraf 5%. Berdasarkan penelitian yang telah dilakukan dapat disimpulkan bahwa perlakuan kompos tandan kosong kelapa sawit dengan penambahan kotoran sapi menggunakan mikroorganisme selulotik berpengaruh nyata terhadap nilai pH kompos (7,16), nilai suhu (27,16), dengan nilai tertinggi terdapat pada perlakuan A4 (Tandan Kosong Kelapa Sawit 60% + Kotoran Sapi 40%).

Household’s Food security during the Covid 19 pandemic, through the use of yards, can be conducted by the community independently such as hydroponic. However, people's understanding of hydroponic, especially in Pekanbaru, is still limited. Therefore, training for the community is needed as a community empowerment. These activities can be expanded through interesting educational videos. This community empowerment activity aims to increase community knowledge and skills regarding hydroponic technology during the pandemic, and is expected to become a post-pandemic household-scale economic enterprise. This community service activity is carried out by means of training and mentoring, as well as making a video to be widely disseminated through social media. The results of the community service activities show an increase in community knowledge and skills of hydroponic. After the training, the community independently has been aplicating hydroponic technology and biulding hydroponic group. This process is documented as educational video which is useful for the wider community in Pekanbaru City.

There have been many efforts to increase agricultural productivity as a step to improve farmers’ welfare, one of which is through food diversification. Processing sago into various kinds of processed food products is a strategic to accelerate sago diversification. The market potential for sago starch in Riau Province is quite growing along with the local food products development. The purpose of this study was to analyze practical steps as an acceleration of sago food diversification so that opportunities could be identified in improving the welfare of sago farmers in Riau Province. This study used a survey method through interviews and direct observation regarding raw materials and processing methods for sago-based food products and the development of sago diversification products. As a support, secondary data is used through documents and reports related to local processed food in Riau Province, nutritional aspects, community and farmer empowerment, as well as increasing added value of products as supporting economic aspects. It was analyzed through a comparison between the increase in population and the potential for sago production. The existing diversified sago food products have good consumer acceptance and nutritional aspects.

Lignin is the second most abundant biopolymer on the earth as promising raw material for various valuable products. In terms of biorefinery, the organosolv method promotes elevate satisfy isolation due to its ease of purification and environmental friendliness. This study aimed to determine the effect of temperature on lignin isolation from palm oil empty fruit bunch (EFB) obtained through the organosolv method. The isolation was using acetic acid, formic acid, and water (30:60:10( v/v/v)) as the solvent and 0,1% of HCl as a catalyst at various temperatures (60°C, 85°C, 100°C, and 121°C). The heating temperature had significant effect on the yield, purity and pH of lignin. The lignin yield roses when the temperature increase from 60°C to 85°C but starts to decrease at 100°C. The highest yield of 15.87% was obtained at 85°C. However, the purity is inversely proportional to the yield. The higher the yield, the lower the purity correspond to condensation reaction at temperature above 85°C. The highest purity of 94.49% was obtained at the lowest yield at temperature 121°C. The heating temperature also affected pH. The pH is increase with increasing temperature. Functional groups analysis using FT-IR indicated that lignin isolates obtained at a temperature of 60°C, 85°C, 100°C, and 121°C had similar functional groups, consist of ether linkage, aromatic rings, C-H methyl linkage, guaiacyl rings, and syringyl rings indicated that the lignin of oil palm empty fruit bunch classified as SGH-type lignin.

Plastic is a packaging material used as a container to protect and store food as well as non-food products essential for the community, specifically in Indonesia. This study aims to examine the effect of glycerol addition as a plasticizer on the physical characteristics of biodegradable plastic made from oil palm empty fruit bunches (OPEFBs). It was conducted through an experiment using a completely randomized design (CRD) consisting of 5 treatments and three replications. The treatments include P1, P2, P3, P4, and P5 with 1%, 1.5%, 2%, 2.5%, and 3% glycerol, respectively, in the formulation of biodegradable plastic. The results showed that the addition of glycerol had significant effects on water resistance, vapor transmission rate, tensile strength, and elongation, but had no significant effect on the biodegradability of plastic. Furthermore, the addition of glycerol as a plasticizer improved the elongation of biodegradable plastic made from OPEFB, but did not improve the characteristics of water resistance, vapor transmission rate, and tensile strength. The P1 treatment produced the best result as it generated a water resistance of 2.226%, vapor transmission rate of 16.306 g/m2/hour, tensile strength of 2.430 MPa, and elongation of 18.950%. In addition, the biodegradable plastic was able to decompose in two weeks.