In Vitro Activity Test Of Murayya Koenigii L. Spreng Leaves As A Natural Preservative For Tilapia Fish Meat

Fish that are high in protein content are prone to quality degradation. This is strongly thought to be due to the influence of microbes that are inside or outside the fish's body. The use of formalin for food preservatives is not recommended because it can interfere with health. In Indonesia, there are many natural preservatives that are safer to use, such as Murayya koenigii L. Spreng which is rich in antioxidants and has antibacterial properties. This study aimed to evaluate the effect of M. koenigii leaf extract as an inhibitor of bacterial growth in Oreochromis. niloticus fish meat and to measure the maximum concentration of M. koenigii leaf extract. The study used a completely randomized design method (RAL) with one factor, namely the concentration of temurui leaf extract (Murayya koenigii L. Spreng) which consisted of concentrations of 0, 10, 20, 40% (g / mL). The data were taken on storage time, namely 0 days, 1 day, 2 days, and 3 days. The observation parameter used was the inhibition zone diameter (mm) which was analyzed using one way ANOVA. The results showed that temurui leaves have the potential to be used as an inhibitor of microbial growth in O. niloticus fish meat at a concentration of 40% (g / mL) which is the maximum concentration.

The Application of Anaerobic Plastic Media Biofilter for Removal of Ammonia and Oil and Grease in Slaughterhouse Wastewater

Slaughterhouse wastewater generally contains organic substances, fatty oils and ammonia which can cause pollution to the environment. This study aims to analyze the removal efficiency of ammonia, oil and grease and pH of the slaughterhouse wastewater from Banda Aceh using an anaerobic biofilter. The bioreactor was acclimatized for 30 days to form a biofilm layer before being used as a biofilter. The results showed a decrease in the oil and grease content and pH of the slaughterhouse wastewater after given 6 days contacted time. Ammonia parameter increased by 2.02%, while the efficiency of oil and grease and pH also increased by 96.667% and 30.927%, respectively. It can be concluded that the anaerobic plastic media biofilter has been able to reduce the oil grease content and pH of slaughterhouse below the quality standard, except for ammonia which exceeds the quality standard of Environmental Government Regulation no. 5 of 2014.

Macroscopic Diagnosis of Plant Diseases Caused by Pathogenic Microorganism

From a biological point of view, plant diseases are deviations from internal traits that cause plants to not be able to carry out normal growth activities. Plant diseases in the field can be identified based on signs and symptoms of diseases that appear. This study aims to determine how to diagnose macroscopically the symptoms of diseases that arise due to pathogenic microorganisms on plants. This research was conducted in 3 stages which included the location survey, observation, and primary data collection stages. The method for primary data collection is done by direct observation, namely direct observation of samples and documented. Data were analyzed using the formula to calculate the percentage and intensity of disease attacks on plants. The results obtained were as many as 3 plant species (Capsicum sp, Solanum escelentum, Oryza sativa) from 12 plants which were observed to be attacked by pathogenic microorganisms with a percentage amount (22,45 %, 58,97%, 9%). Obtain 4 types of pathogenic microorganisms that attack plants, namely Gemini virus that causes leaf curling in Capsicum sp plant, Pyricularia oryzae fungus which causes leaf blast in Oryza sativa plants, the fungus Alternaria solani causes dry spot and Rhizoctonia solani fungus which causes leaf blast in Oryza sativa plants, the fungus Alternaria solani causes leaf dry spot and Rhizoctonia solani fungi that cause fruit rot in Solanum escelentum.

Fertilizing Treatment of Soybean Anjasmoro Varieties on Rainfed Rice Field in Water Shortages Areas of Pidie Regency

Appropriate fertilization in the cultivation of high-yielding varieties has a great opportunity to increase soybean production, especially in soybean centers where areas lack water and ex-paddy fields. An assessment was conducted in Ujong Pie Village, Muara Tiga District, Pidie Regency during the 2020 dry season. The study demonstrated the use of appropriate cultivation technology and superior varieties of Anjasmoro soybean. Plants are managed with integrated crop management (PTT). The land used is land that was previously used for rice planting activities. The study applied five treatments, namely the former fertilized N (P1), K (P2), P (P3), and NPK (P4), as well as the pattern of farmers as control (P5). Pest and disease control is carried out with the principle of IPM. The variables measured were the growth rate of plants and their production components. The results obtained showed that the average plant height during the vegetative period at locations P4 and P5 (P0.05) was higher than those who received other treatments. The maximum growth (height) of plants that received the treatment were 56.33 cm and 54.66 cm. The highest average number of pods per plant occurred in plot P5 and then in P4, 16.50 and 15.00 pods per plant, respectively. The highest average seed production per plant was achieved in plot P5 (18.4 g/plant) and followed by plot P4 (17.13 g/plant) or converted in hectares with an average of 1.82 t/ha and 1, 50 t/ha

The Making of Cereal With Subtitution of Soybean Flour (Glycine Max L. Merr) and Pasta Fruit Bit (Beta Vulgaris L) As Natural Dyes

Making cereals using wheat flour is a problem because the raw materials obtained are more expensive. In addition, wheat flour will have an adverse effect on some people who are sensitive to gluten. One of the best alternatives to wheat flour in the manufacture of cereals to produce low-gluten cereal products is tapioca flour. The purpose of this study is to determine the effect of adding soybean flour, beetroot paste and its interaction on physical and organoleptic characteristics of cereals. The results showed that the best treatment was found in the addition of 60% soybean flour and 85% beetroot paste (K3B3) which produced good quality serela with chemical properties, namely water content of 4.67%, yield 63.00%, water absorption 13, 10%, crispiness in milk 106 seconds, organoleptic test for taste 3.94 (like), aroma 4.10 (like), texture 2.67 (ordinary) and color 3.83 (like).

The Effect of Coconut Shell Liquid Smoke Concentration and Storage Time on The Quality of Fresh Cob Fillet

This study aims to determine the effect of the concentration of coconut shell waste liquid smoke on the preservation of tuna, determine the effect of storage time on the preservation of tuna, determine the effect of the interaction between liquid smoke and storage time on the preservation of tuna. The study used a descriptive method with two factors, namely the concentration of coconut shell liquid smoke, namely 1, 2, 3%. The data was taken on the storage time, namely 1 day, 3 days, 5 days. The results showed that the best conditions for preserving fresh cob fillets were from a concentration of 2% liquid smoke and a storage time of 5 days. with the highest water content of 70.64%, pH of 2.23, aroma organoleptic test of 3.65 (like), and texture organoleptic test of 4.20 (like).

Composition of White Potato Starch (Ipomea batatas L.) with Avocado Seed Starch (Persea americana Mill) and Glyserol Concentration in Edible Film

White sweet potato starch (Ipomea batatas L.) and avocado seed starch (Parsea americana Mill) derived from local plants have the potential to be developed as agricultural products. Starch is a hydrocolloid compound as a potential local resource to be utilized. Glycerol function as an anti-freezing which is hygroscopic. This study aims to determine the ratio of white sweet potato starch with avocado seed starch and the concentration of glycerol for making edible film. This study was an experiment using a completely randimized factorial design with 2 (two) main factor consisting of a comparison of white sweet potato starch and avocado seed with 3 levels: P1 = 35%:65%., P2=50%:50%., P3=65%:35% and glycerol concentration with 3 levels: G1=1%., G2=2%., G3=3%. The best result reasearch were content of 23.03% (tratment P1G1), solubility of 55.57% (treatment P3G2)., swelling test of 9.83% (treatment P2g3)., elongation of 8.18% (treatment P3G2)

Innovation of Natural Preservation of Mackerel (Rastrelliger kanagurta) Using Coconut Coconut Ashes with Drying Time Variations on Hedonics

Coconut frond ash is one of the wastes from coconut trees which has not been maximally utilized. Coconut frond ash contains MgCl2 and KCl so that it can be used as a salt substitute in the process of preserving fish. In this study coconut frond ash was used as a basic ingredient for making dried mackerel with a long time of drying to storage. The purpose of this study was to determine the effect of drying time on mackerel storage. The research design used was a Randomized Block Design (RCBD) with 2 factors studied. The first factor is the drying time consists of 3 levels, namely P1 = 3 days, P2 = 4 days, P3 = 5 days. The second factor is storage which consists of 3 levels, namely S1 = 30 days, S2 = 60 days, S3 = 90 days. Each treatment was repeated 2 times to obtain 18 experimental units to observed hedonic tests. From the results of the study it can be stated that the treatment has a very significant effect (P≥0.01) on the hedonic test which includes (color, aroma, taste and texture).

Analysis of Coliform and Colifecal Total Pollution Test on Various Types of Drinking Water Using the MPN (Most Probable Number) Method

Water is the main source for life and also the most severe substance caused by pollution. The mandatory parameters for determining microbiological quality of drinking water are total non-fecal Coliform bacteria and Coliform fecal (Escherichia coli). Coliform bacteria are a group of microorganisms commonly used as indicators, where these bacteria can be a signal to determine whether a water source has been contaminated by bacteria or not, while fecal Coliform bacteria are indicator bacteria polluting pathogenic bacteria originating from human feces and warm-blooded animals (mammals) . The water inspection method in this study uses the MPN (Most Probable Number) method which consists of 3 tests, namely, the presumption test, the affirmation test, and the reinforcement test. The results showed that of 15 drinking water samples 8 samples were tested positive for Coliform bacteria with the highest total bacterial value of sample number 1, 15 (210/100 ml), while 7 other samples were negative. From 8 positive Coliform samples only 1 sample was stated to be negative fecal Coliform bacteria and 7 other samples were positive for Coliform fecal bacteria with the highest total bacterial value of sample number 1 (210/100 ml).

Improvement of Gayo Lues Patchouli Oil Alcohol Quality With Absorbent Variations of Juice And Purut Orange Peel (Citrus hystrix)

Patchouli oil refinery in Gayo Lues Aceh Indonesia commonly used evaporation process in an old drums at high temperature which decreased the quality of oil produced. The research to enhance the quality of patchouli alcohol of Gayo Lues patchouli oil using Citrus hystrix absorber has been done.The juice from kaffir lime (1 – 10 % v/v) used as chelating agent, and the kaffir peels powder (2,5 - 7 gr) used as bio sorbent. The highest patchouli alcohol (P.A) both resulted at T=50 oC and 60 minutes heating. Kaffir bio sorbent at 7,5 gr usage, gave 40,37% P.A and Fe reduction of 77,67%; while kaffir lime juice at 4% v/v usage, gave P.A 39,90% and Fe reduction of 78,25%. Purified patchouli oil also characterized by its light yellow color, density and refractive index based on SNI.06-2385-2006. It’s concluded that kaffir peels bio sorbent purification has superior P.A quality than kaffir lime juice.