ABSTRACT The purpose of the study was to obtain the best ratio of crystal guava pulp and purple sweet potato pulp in making fruit leather according to SNI 3747‒2008 on fruit jam. The treatments of fruit leather in this study were the ratio of crystal guava fruit pulp and purple sweet potato pulp including JU1 (90:10), JU2 (80:20), JU3 (70:30), JU4 (60:40), and JU5 (50:50). The parameters obs…
ABSTRACT The research aims to determine the effect of the selected roasting time on the physico-chemical and sensory characteristics of arabica leaf kawa. The research was conducted experimentally using a completely randomized design (CRD) with four treatments and four replications, resulting in 16 experimental
ABSTRACT The addition of nutrient sources could increase lactic acid bacteria growth and antimicrobial activity against pathogenic bacteria. Pediococcus pentosaceus strain 2397 produced bacteriocin with a molecular weight of 14.4 kDa. The purpose of this study was to determine the best carbon and nitrogen sources that increase the growth and antimicrobial activity of Pediococcus pentosaceus st…
ABSTRACT The purpose of this study was to obtain the best treatment of cassava starch edible coating with the addition of ginger extract on the physico-chemical and sensory properties of avocado during storage. This research method was carried out experimentally using a completely randomized design (CRD) with five treatments and three replications to obtain 15 experimental units. The treatment…
ABSTRACT Ice cream is a frozen food made from cow's milk which is very popular with the public. This study aims to get the best formulation using coconut milk and whipping cream for the quality of Dutch eggplant ice cream which refers to SNI No. 01=3713-1995. This study used a completely randomized design with five treatments and four replications resulting in 20 experimental units. The treatm…
ABSTRACT Peptone is an essential product in biotechnology and functional food. Commercial peptone needs consideration to use because not proven in halal aspects and could contain components prohibited by Islamic law considerations. This study aims to obtain the best interaction between the ratio of pangasius filet waste and pineapple core with hydrolysis time to produce halal peptone as an alt…
ABSTRACT PT Perkebunan Nusantara V Sei Galuh is a work unit managed by PTPN V Riau, under the Ministry of BUMN which operates oil palm plantations as its main business. The main work activities carried out on oil palm plantations are maintenance and harvesting. This study aims to identify indicators on occupational safety and health and work productivity, as well as the influence of occupation…
ABSTRACT Making fruit leather needs to be added hydrocolloids to improve plasticity that often occurs, especially in raw materials that contain low pectin, such as mango and rosella. One solution that can be done is to add ingredients that have good plasticizing properties, such as carrageenan. The study aimed to obtain the best concentration of carrageenan in the manufacture of fruit leather.…
ABSTRACT Ice cream is a semi solid food made from milk, fat, sugar and other additional ingredients. The purpose of this study was to obtain the best ratio of soy milk and coconut milk towards the physicochemical quality and sensory quality of ice cream with the addition of butterfly pea extract as a natural colorant. This study used a completely randomized design with four treatments and four…
ABSTRACT Encapsulation aimed to protect bacteria from adverse enviromental conditions and increase bacterial resistance. The purpose of this study was to determine the viability of probiotics encapsulated with cellulose microfiber from empty oil palm fruit bunches at different temperatures during storage. This research was conducted experimentally using a completely randomized design consistin…
ABSTRACT Nuggets are a type of fast food with high protein that can be consumed by everyone, from children to the elderly. The purpose of this study was to obtain the best formulation of coconut dregs in the making of fish nuggets according to SNI 7758‒2013 concerning fish nuggets. The treatment in this study was ratio narrow-barred spanish mackerel and coconut dregs, consisted of TK1 (95:5)…
Peat soil as agricultural land has various obstacles, one of the problems is the decrease in the groundwater level. Therefore, water management is an absolute necessity for agricultural activities on peatlands. Another effort to provide a good growing environment for corn plants can be supported by the application of organic mulch. The purpose of this study was to study the interaction betw…
ABSTRACT Cassava tuber skin and nipah fruit shell are biomass waste that can be used as an alternative energy source because they contain lignin and cellulose. The purpose of making nipa palm shell charcoal and cassava root husk briquettes is to get the best ratio of nipa shell charcoal briquettes and cassava tuber skin charcoal. The study was carried out experimentally using a completely rand…
ABSTRACT This study aims to obtain the best characteristics of biodegradable plastic made from banana weevil starch with the addition of straw cellulose as reinforcement. This research was conducted using Completely Randomized Method (CRD) with four treatments and four replications. The treatments in this study were the addition of straw cellulose with a ratio of starch and cellulose 1:0; 1:0,…
Eucalyptus sp. is one of the plant developed as a wood fiber-producing industrial plantation forest in Indonesia. Xanthomonas sp. attack which causes Bacterial Leaf Blight (BLB) to be one of the obstacles to obtaining uniform seeds with good quality. Infected plants grow with many stems and are stunted compared to plants that are not infected. Thus, it is necessary to have an environmentally fr…
Eucalyptus pellita is one of the annual commodity species that is widely developed and utilized as a raw material for pulp and paper by Industrial Timber Plantation (HTI) companies in Indonesia, especially in dryland areas. The success of an HTI plantation starts with the availability of strong and healthy seedlings in the nursery. However, there are problems with plant pathogen attacks. O…
ABSTRACT Increased population activity has an impact on the high energy demand. Alternative energy that can be developed is briquettes from biomass waste such as cocoa pod shells and bamboo stems because they contain high levels of carbon such as cellulose and lignin. The purpose of this research was to obtain the best ratio from the combination of cocoa pod shell charcoal and bamboo stem char…
ABSTRACT Aromatherapy candles is a diversification of wax products that are infused with essential oils. This study aimed to obtain the best ratio of stearin and paraffin wax to the quality of candle in accordance with SNI 06–0386–1989. The research method used a completely randomized design (CRD) experiment consisting of 5 treatments and 3 repetitions. The treatment used is the ratio of s…
Bioherbicide from Eucalyptus pellita leaf extract can be used to control weeds in HTI plantations. One of which is Borreria alata (Aubl) DC. weed found in E. pellita HTI plantations. Borreria alata (Aubl) DC., is a broadleaf weed that frequently grows in E. pellita HTI plantations aged < 5 months, with a significant importance value index of 83.99%, indicating its high dominance compared to…
Management of specific primary macronutrients (N, P, and K) is essential to ensure the growth and development of Eucalyptus hybrid mother plants. This research was conducted at the R&D Nursery greenhouse and Soil Laboratory, Tualang District, Siak Regency. The objective of this study was to analyze the effect of specific primary macronutrients for the mini cutting production of three Eucal…