ABSTRACT Lactic acid bacteria (LAB) have become the object of extensive research, both nationally and internationally, because this bacterium has a critical role in most fermented foods. This research aims to isolate and identify the presence of LAB in dadih from Limau Manis Village. The research was conducted by isolating LAB from two tubes of dadih using the serial dilution method. Each …
ABSTRACT White bread is a widely consumed carbohydrate-rich product, usually made from wheat flour. Besides using wheat flour, white bread can also be substituted with local ingredients, such as sago starch. Heat moisture treatment (HMT) modification sago starch can be used as alternatives to reduce of the use of wheat flour in making white bread. The purpose was to determine the effect of…
ABSTRACT Yogurt is a beverage product processed through milk fermentation using Lactobacillus bulgaricus and Streptoccocus thermophilus. To add flavor, color, and aroma so as to improve the oraganoleptic properties of yogurt, it is necessary to add fruit in the manufacturing process such as dragon fruit. The use of red dragon fruit puree in yogurt is expected to increase the shelf life of …
ABSTRACT This study aims to analyze the effect of pressure differences on fiber loss and dirt count in pulp products. Pressure is one of the important parameters in the fiber washing and refining process, which can affect the efficiency of dirt separation and the quality of the fiber produced. The method used in this study is experimental with certain pressure variations at the relevant pr…
ABSTRACT Sweet corn (Zea mays saccharata Sturt.) is one of the horticultural commodities with high market demand. However, its productivity in Riau Province remains low. One of the efforts to improve the growth and yield of sweet corn is through the application of both organic and inorganic fertilizers. This study aimed to determine interaction between chicken manure bokashi (organic fertilize…
ABSTRACT This study aims to obtain selected characteristics of activated charcoal made from palm fiber with the help of phosphoric acid as an activator. This study was conducted using a completely randomized design (CRD) with five treatments and three replications. The treatments in this study involved the use of phosphoric acid at concentrations of 10% (KS1), 12.5% (KS2), 15% (KS3), 17.5%…
ABSTRACT Dry noodles are defined as products made from wheat. Gluten-free noodles are noodles which main ingredients do not contain gluten, one of which is sweet potato starch. Heat moisture treatment (HMT) modification can affect the characteristics of sweet potato starch, with these changes influenced by processing conditions, such as moisture content. The purpose was to determine the ef…
ABSTRACT Palm oil (Elaeis guineensis Jacq.) is a commercially developed palm plant, significant for its high productivity and economic value in tropical countries like Indonesia. Replanting aims to enhance oil palm productivity by replacing old, unproductive plants with new ones while ensuring the availability of high-quality seeds. Successful cultivation heavily relies on seed quality, partic…
ABSTRACT Peanuts are one of the most important food crops after rice, corn, and soybeans in Indonesia. Peanut production in Indonesia is still unstable, however it can be improved by utilizing the potential of Ultisol soils, which are widely distributed across the country. Nevertheless, Ultisol soils have various limiting factors, both chemical and physical. These limitations can be addressed …
ABSTRACT Maize (Zea mays L.) is an important food crop in Indonesia, serving both as a food source and livestock feed. Declining maize productivity is often linked to low soil fertility, especially in marginal soils such as Ultisols. This study aimed to examine the effects and interaction of solid compost and coal fly ash application on maize growth and yield, as well as to determine the o…
ABSTRACT Oil palm (Elaeis guineensis Jacq.) is a major plantation commodity in Indonesia, particularly in Riau Province, due to its high potential for development and its role in producing vegetable oil. As of 2022, Indonesia's oil palm plantation area reached 14.98 million hectares, with 2.85 million hectares located in Riau, accounting for 20% of the national total. Delayed flowering and…
ABSTRACT Clania tertia is a type of bagworm that attacks oil palm plantations in Indonesia. A common bagworm control technique is to use synthetic pesticides that can have a negative impact. The solution offered is to use the entomopathogenic Metarhizium anisopliae rice field isolate as an environmentally friendly alternative. This study aims to obtain the concentration of entomopathogenic fun…
ABSTRACT Oil palm plant is one of the plantation commodities that have an important role in economic activities in Indonesia. Cultivating oil palm plants as monocultures causes the environment more favorable for insect pests to attack the plants. To overcome this, it is necessary to observe the types and populations of pests on palm oil plants. This research aimed to obtain information and…
ABSTRACT Oil palm (Elaeis guineensis Jacq.) is one of Indonesia's main plantation commodities, especially in Riau Province. One of the key factors influencing the productivity of oil palm is the time required for flowering and fruit maturation. This study aimed to evaluate the interaction effects of coal-based fertilizer and NPK fertilizer, and to determine the optimal combination that aff…
ABSTRACT Coconut (Cocos nucifera L.) is an important commodity for the people of Indonesia, especially in Indragiri Hilir Regency, Riau. The land in coastal areas is generally tidal land, which often faces various problems. This study aims to determine the quality of coconuts produced based on differences in land elevation. The research uses a non-experimental comparative observational ap…
ABSTRACT This study aims to see the interaction between coal fertilizer and potassium fertilizer and get the best combination of coal fertilizer and potassium fertilizer for the time of flower emergence and production of oil palm (Elaeis guineensis Jacq.). This research was carried out in an oil palm plantation in Agrotourism Village, Rumbai District, Pekanbaru City, Riau. This research was ca…
ABSTRACT Shallot (Allium ascalonicum L.) is one of the leading horticultural crops that is highly favored by the public as a cooking spice and is also useful as a traditional medicine. Efforts to increase shallot production still face obstacles, such as pest attacks by the onion caterpillar (Spodoptera exigua Hubner), which can cause yield losses of 32–42%. One of the control strategies …
ABSTRACT Chip quality is very important as it affects the next stages of production. Chip quality includes parameters such as accept, reject, overthick, pin fraction, fines, and chip length. This study analyzed the effect of different wood species on chip quality, specifically Acacia mangium, Acacia crassicarpa, and Eucalyptus. This study was conducted by analyzing secondary data in 8 days at …
ABSTRACT A winder machine is a machine that functions to roll a jumbo roll and cut the roll where the rolls will later be adjusted to customer demand. During the winding process, problems are often found in the form of defects or defects in sheeter roll products, which can affect the physical quality, aesthetics, and performance of the product when used by end customers. These defects can appe…
ABSTRACT Steam is one of the primary energy sources used in the pulp drying process at the Pulp Dryer Department. High steam consumption directly affects production costs and overall energy efficiency in the plant. During the internship period, it was observed that daily steam consumption fluctuated not only due to operational disturbances such as downtime or shutdowns, but also appeared to be…