Differences in soil types, water table regimes, and technological inputs in smallholder oil palm plantations on acid sulfate soil lead to the formation of distinct land units within the plantations. There are four different land units identified, each with its unique characteristics. These differences in characteristics result in variations in the properties and performance of oil palm plan…
Peat soil fertility is classified as low which is characterized by soil chemical properties, including low pH (acid), availability of macro (K, Ca, Mg, P) and micro (Cu, Zn, Mn, and Bo) nutrients, low cation exchange capacity (CEC) is high but Base Saturation (BS) is low. In increasing nutrient availability and absorption in plants, mycorrhizal materials are needed which can increase the ab…
This study aimed to evaluate the improvement in growth and yield of M8 generation mung bean plants (Vignaradiata L.) resulting from gamma ray mutation, in an effort to obtain plants with synchronous pod maturity characteristics and high pod weight production. The study employed a completely randomized design (CRD), involving a population of parent plants and 4 progenies, namely M8-18-3-1-6…
Green beans (Vigna radiata L.) is a plant that is widely cultivated in Kampar Regency, Riau. Mung bean productivity in Indonesia and the Kampar district tends to be stable every year, but mung bean farmers in the Kampar district generally cultivate green beans from the local Kampar strain which have low yield, have trichomes and pods that break easily. One of the efforts that can be made to…
Soil macrofauna measuring > 2 mm consists of milliapoda, isopods, insects, molluscs and earthworms (Maftu'ah et al., 2005). Soil macrofauna has an important role in the decomposition of soil organic matter in the provision of nutrients. Macrofauna will crumble dead vegetable matter, then the material will be excreted in the form of feces. The presence of soil macro, meso and microfauna has a ro…
Peatlands in Indonesia are widely used for the development of plantation crops, one of which is oil palm. The development of peatlands faces many obstacles, such as the reaction of acidic to very acidic peat soils with high cation exchange capacity (CEC) and the availability of nutrients in a bound form. These conditions do not support plant growth in general. The solution to solve the problem…
Oil palm is an important plantation commodity in Indonesia which has high productivity. The growth of oil palm is inseparable from disease disturbances. Oil palm stems base rot disease is caused by the fungus Ganoderma sp. Morphological identification determines the success of stem rot disease control efforts. Trichoderma sp. is a fungus that is antagonistic to Ganoderma. Trichoderma origi…
Acacia crassicarpa A.Cunn. ex Benth is a type of fast-growing tree species that is highly adaptable and tolerant of extremely environmental conditions. Acacia crassicarpa is a type of forest plant that has harvested period of approximately 5 years. Economically, the acacia is used as a wood source for processed into wood pulp, paper, and fuel potential for charcoal production. One of the e…
ABSTRACT Biodegradable plastics is plastic made from renewable resources and can be decomposed by the action of living organisms. Biodegradable plastic can be made from starch from cassava peels and cellulose from pineapple leaves. The purpose of this study was to obtain the best ratio of cassava peel starch and pineapple leaf cellulose to the characteristics of the resulting biodegradable pla…
ABSTRACT This study aims to obtain the best characteristics of biodegradable plastic made from sago starch with the addition of palm frond fiber cellulose. This research was conducted experimentally using a completely randomized method (CRD) with four treatments and four replications. The treatment in this study was the addition of cellulose fiber from palm fronds 10%, 20%, 30% and 40%. Tests …
ABSTRACT Banana bunch is a potentially large biomass and is only disposed of as waste. Banana bunch can be utilized in high-value-added products such as pectin. Pectin is an industrial material obtained by extraction from plant tissue and can be influenced by various factors, including temperature extraction. Temperature extraction is one factor that will determine pectin's properties and feat…
ABSTRACT Robusta coffee has higher caffeine than other types of commercial coffee. High levels of caffeine in robusta coffee can hurt health. One of the efforts to reduce this impact is by the decaffeination process. Decaffeination can be carried out enzymatically with the bromelain. Bromelain from pineapple peel can hydrolyze caffeine molecules that have a structure similar to proteins. The s…
ABSTRACT The purpose of this research is to identify the supply chain and added value of each supply chain actor and to determine strategic priorities for the palm sugar supply chain in Torgamba District, South Labuhanbatu Regency, North Sumatra. Data analysis was performed by adding value analysis, SWOT analysis, and Analytical Hierarchy Process (AHP). The results showed that the supply chain…
ABSTRACT Burger patty is one of the fast food that is favored by the public, both children and adults. The purpose of this study was to obtain the best ratio of catfish and corn starch in making burger patty on physical, chemical, and sensory properties that meet Indonesian National Standard 8503-2018. The research method used a completely randomized design (RAL) with four treatments and four …
ABSTRACT Lactic acid bacteria have been found in spontaneously fermented palm sap, but their ability to inhibit the growth of pathogenic bacteria to be categorized as probiotics is unknown.. Listeria monocytogenes and Salmonella typhimurium are pathogenic bacteria that often contaminate food and put human health at risk. The purpose of this study was to determine the antimicrobial activity of …
ABSTRACT Starch pregelatinization is a modification process of raw starch by cooking with complete gelatinization and drying process. Pregelatinized sago starch it could reduce the absorption of oil in food products by submerged oil frying. The purpose of this study was to identify the optimal combination of pregelatinized sago starch and wheat for the physical-chemical properties, sensory pro…
ABSTRACT The purpose of this study was to obtain the best formulation of a combination of kepok banana flour, soybean pulp flour and coconut pulp flour on the chemical content and sensory quality of snack bars. This research was carried out experimentally using a complete randomized design (CRD) with five treatments and four replications so that 20 experimental units were obtained. The treatme…
ABSTRACT Herbal tea is one of the functional drinks made from ingredients that can provide benefits because it contains phenol group compounds as antioxidants that play a role in warding off free radicals. The study aimed to obtain the best additional mint leaves on sensory characteristics and antioxidant activity of soursop leaves herbal tea. The research was conducted experimentally using a …
ABSTRACT This study aims to obtain selected characteristics of activated charcoal made from oil palm stems 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 treatment in this study used a concentration of 5% phosphoric acid; 7.5%; 10%; 12.5% and 15%. Observations were made on th…
ABSTRACT Pectin is one of the polysaccharides obtained from fruits. It is commonly used for made jelly and thickeners additive in food. The raw material for pectin that used in this research was noni fruit. Noni fruit has a strong aroma and people dislike the taste. It was the reason of non-optimal resource utilization of noni fruit. The purpose of this research was to obtain the best extr…