scholarly journals PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis quineensis Jacq) PADA MEDIUM ULTISOL YANG DIAPLIKASI KOMPOS Mucuna bracteata

2021 ◽  
Vol 35 (3) ◽  
pp. 125-134
Author(s):  
Taufik Ristumoyo Rambe ◽  
Adiwirman ◽  
Wawan

The first problem faced in cultivating oil palm is the procurement of seeds. Ultisol soil when used for breeding media has several problems such as having a wet saturation of less than 35% at a depth of 125 cm below the upper limit of the argillic horizon.  Ultisol has an acidity level of less than 5.5, low to moderate organic matter and low nutrition. The addition of organic material such as the LCC Mucuna bracteata compost is highly recommended because it will improve the physical, biological, and chemical properties of the soil, so that it increases the availability of nutrients in the soil to be optimal. This study aims to determine the effect of LCC mucuna bracteata compost on ultisol soil medium and determine the dosage/dose of LCC Mucuna Bracteata compost which provides the best growth of oil palm seedlings (Elaeis guineensis Jacq). This research was carried out experimentally with a Completely Randomized Design (CRD), consisting of 5 treatments and 4 replications. The results of this study indicate that distributing doses of 400 g/8 kg of soil improved the physical and chemical properties of the soil and the vegetative growth of oil palm seeds.

2019 ◽  
Vol 1 (1) ◽  
pp. 1-4
Author(s):  
Aprizal Aprizal ◽  
Irdha Mirdhayati ◽  
Yendraliza Yendraliza

The production of halal gelatin from buffalo hide waste which is animal be slaughtered according to Islamic law and using pineapple rind as an extraction agent was an alternative to produce halal gelatin. The availability of buffalo hide in Riau Province was stable and its hide had high protein content. This research was conducted to produced and determine the characteristics of halal gelatin from buffalo hide using solution of pineapple skin in terms of their physical and chemical properties. The Completely Randomized Design (CRD) was experimental design used with consist of 3 treatments and 4 replications. The treatment was ratio hide :  pineapple rind solution, namely 3:1, 3:2 , 3:3 w/v. The parameters observed were yield, viscosity, color, pH, ash content and moisture content. The results showed that immersion of buffalo hide in the solution of pineapple rind at different ratio gave highly significant increased the viscosity and ash content of gelatin but not significant effect to yield percentage , color, pH and moisture of gelatin. The yield percentage ranging from 5.99-7.33%, pH 4.83-4.85, viscosity was 1.95-2.20 cP, color 0.54-0.71 absorbance unit, ash 0.25-, 032% and moisture 9.97-9.99%. It can be concluded that the best treatment was ratio 3:2 and 3 : 3 according to had viscosity, pH, color, ash and moisture in line with the standard of gelatin by Gelatin Manufacture Institute of America (GMIA).


2021 ◽  
Vol 4 (2) ◽  
pp. 324
Author(s):  
Norhikmah ◽  
Noor Mirad Sari ◽  
Muhammad Faisal Mahdie

Tapioka flour as an adhesive for coconut shell charcoal briquettes can affect the characteristics of charcoal briquettes consisting of physical and chemical properties. The purpose of this study was to determine the physical properties of coconut shell charcoal briquettes in several adhesive percentages. The method used was a completely randomized design pattern and in this study there was only one factor (factor = coconut shell charcoal and tapioca adhesive/starch), as many as 5 treatments with 3 replicatins = 15 samples to be tested. Charakteristics of coconut shell charcoal briquettes that meet ASTM standard : water content that entered ASTM standard (Max 6%) in treatment A2 (95% coconut shell charcoal + 5% tapioca adhesive), the best density is found in treatment A3 (90% coconut shell charcoal + 10% tapioca adhesive)and enter ASTM standard(1.0-1.2 g / cm3), ash content that falls within the ASTM standard (Max 18%) in treatment A3(90% coconut shell charcoal + 10% tapioca adhesive), flying substancs that comply with ASTM standard (19-28%) in treatment A3 (90% charcoal coconut shell + 10% tapioca adhesive), bonded carbon content which is included in the ASTM standard (at least 58%) in treatment A2 (95% coconut shell charcoal + 5% tapioca adhesive),and the best heating value is found in the treatment A3 ( 90% coconut shell charcoal + 10% tapioca adhesive) which falls within the ASTM standard (4000-6500 cal / g). The results of this study indicate that the percentage of tapioca adhesive can affect the characteristics of coconut shell charcoal briquetess.Keywords: Percentage of tapioca adhesive; Charcoal briquettes; Coconut shell


2017 ◽  
Vol 35 (2) ◽  
pp. 174-179 ◽  
Author(s):  
Maristela Watthier ◽  
Magnólia AS Silva ◽  
José E Schwengber ◽  
Maria H Fermino ◽  
Tiago V Custódio

ABSTRACT Different properties of substrates based on tung compost (TC), carbonized rice husk (CRH) and earthworm humus (H) were analyzed, besides the effect of the formulations on the production of lettuce seedlings, cv. Veneranda. The experiment was carried out in Pelotas, Rio Grande do Sul State, Brazil, from December 2012 to February 2013, in a greenhouse, using completely randomized design with seven treatments and three replications. The used substrates were formulated on a volume basis: T1= commercial substrate S10® (control); T2= 90% carbonized rice husk (CRH) + 10% humus (H); T3= 75% CRH + 15% tung compost (TC) + 10% H; T4= 55% CRH + 35% TC + 10% H; T5= 35% CRH + 55% TC + 10% H; T6= 15% CRH + 75% TC + 10% H; T7= 90% TC + 10% H. Seedlings were produced in polystyrene trays with 200 cells, being evaluated 35 days after sowing. The substrate with larger proportion of CRH (T2 with 90% CRH) showed suitable dry density (DD) and total porosity (TP), high pH and aeration space (AS), low easily available water (EAW), electric conductivity (EC), and nutrient content, constituting an inert substrate, not being indicated as substrate due to the lower development of the seedlings. Using 15% TC, an increase was noticed in DD, AEW, EC and nutrients and, a decrease in TP, AS and pH due to, mainly, the size of tung compost particles, which accommodated themselves and altered physical and chemical properties of the substrates. Substrates with 90% and 75% TC (T7 and T6) provided the greatest shoot length, fresh and dry shoot mass and leaf area for lettuce seedlings due to higher nutrient content, also considering physical and chemical properties of these substrates. Pure CRH is not indicated to be used as substrate, but mixed with tung compost (T6), it provides high quality seedlings. Tung compost was effective in producing lettuce seedlings, since the composting is able to eliminate phytotoxic substances from this material which can hinder the seedling growth.


2020 ◽  
Vol 142 ◽  
pp. 03006
Author(s):  
Herlina ◽  
Nita Kuswardhani ◽  
Maria Belgis ◽  
Adinda Tiara

The purpose of this study was to determine the effect of comparative treatment of the proportion of Sodium bicarbonate and tartaric acid on the physical and chemical properties of effervescent tablets temulawak, as well as knowing the proportions of sodium bicarbonate and tartaric acid right to produce a good effervescent tablets temulawak. The research method uses a single completely randomized design namely the ratio of sodium bicarbonate: tartaric acid, (F1 = 2.0: 2.5; F2 = 2.5: 2.0; F3 = 3.0; 1.3; F4 = 3 , 5: 1,0, and F5 = 4.0: 0.5y). each treatment was repeated 3 (three) times. The resulted data were analyzed by ANOVA test. The results showed that the proportion of sodium bicarbonate and tartaric acid significantly affected color lightness, hardness, hygroscopicity, solubility times, water content, ash content, and not significantly affect viscosity and pH. The right proportion of sodium bicarbonate acid tartaric acid for making effervescent tablets temulawak is A1 treatment (proportion of sodium bicarbonate and tartaric acid 2.0: 2.5) with the attributes of water content of 66.72%, hardness of 2.20 kg, hygroscopicity of 25.43 g, solubility times of 35 seconds, viscosity 1.75 MPa.S, water content 1.19%, ash content 3.10%, and pH = 5.1.


2021 ◽  
Vol 18 (1) ◽  
pp. 37
Author(s):  
Ita Yustina ◽  
Ana Nurhasanah ◽  
SS. Antarlina

<p class="Abstrak"><span lang="EN-GB">By processing sorghum grains into flour, the use of sorghum grains to support food diversification can be made more varied. The research objective was to determine the physical and chemical properties of sorghum muffins and changes of physical properties of sorghum muffins during storage. The research uses a completely randomized design with two factor, grain soaking duration (hours) and ratio of concentration of whole sorghum flours with gluten flour (%) and consists of nine treatments combination. The result shows that treatment has a significant effect on the power expansion, degree of brightness, fat, and preference for organoleptic properties. The best treatment was 24-hours of soaking, 25% whole sorghum flour, 75% gluten flour that produces expanded power at 138,83%, degree of brightness (L) at 67.03, redness (a) at +4.33, yellowness (b) at +27.37, water content of 12.59%, protein content of 6.95%, fat content of 2.46%, score of color at 3.20, texture score at 3.13, aroma score at 3.16, taste score at 3.24, and for overall acceptance at 3.53 (like). Changes of physical properties of sorghum muffins during storage for 3 days can be explained with the linear equation. For all parameter (weight loss, volume loss, brightness loss), the value of constant a in the equation of sorghum muffin was lower than control muffin that indicated quality loss of sorghum muffins is higher than control muffin. Increasing the concentration of sorghum flour resulted a decrease in the quality of the muffins. The soaking treatment of the seeds in making sorghum flour can maintain the quality of the muffin.</span></p>


2017 ◽  
Vol 9 (10) ◽  
pp. 178
Author(s):  
Juliana Almeida Rocha ◽  
Elytania Veiga Menezes ◽  
Francine Souza Alves Fonseca ◽  
Murilo Malveira Brandão ◽  
Kamylla Teixeira Santos ◽  
...  

Magonia pubescens is a tree species originally from the Brazilian Cerrado that bears fruit with winged seeds from which fixed oil can be extracted. This study aimed to analyze the physical and chemical properties of the oil extracted from these seeds and the biodiesel produced thereof. Methods from the Adolfo Lutz Institute, American Oil Chemists Society, and American Society for Testing and Materials were used. Seven fatty acids (oleic, arachidic, gadoleic, palmitic, palmitoleic, linoleic, and stearic acids) were found in the oil. Acidity level (1.119 mg KOH·g-1), iodine value (77.36 cg I2·g-1), saponification value (133.36 mg KOH·g-1), density (0.8796 g·cm-3), and refractive index (1.3348nD) were low when compared to the high peroxide value (26.14 meq·kg-1), viscosity (101.46 mm²·s-¹), and moisture (0.88%) of other oils and fats used for biodiesel production. Biodiesel showed density (0.8484 g·cm-3), viscosity (29.62 mm-2·s-1), acidity level (0.752 mg KOH·g-1), and saponification value (148.89 mg KOH·g-1).


2017 ◽  
Author(s):  
masrukan

Type A gelatin was extracted from partial hydrolysis of collagen from buffalo skin waste. The experiment was conducted to determine the effect of hydrochloride acid (HCl) solution and temperature extraction on physical and chemical properties of buffalo skin gelatin (BSG) and to determine optimum conditions for extraction of BSG which is based on the highest viscosity and gel strength. The experiment used completely randomized design (CRD) with two factors. The first factor was a concentration of HCl solution consisting of 3 levels (1, 2, and 3% v/v) and the second factor was temperature extraction (60, 70, and 80 oC). The results showed that concentration of HCl and temperature extraction significantly affect the physical and chemical properties of buffalo skin gelatin.The optimum condition is obtained using HCl 1% and temperature extraction of 70OC. Using optimum condition, the physical and chemical properties of BSG are: yield of 56.7%, Bloom gel strength of 140.72 gram; viscosity of 4.75 cP; melting point of 27.4°C; yellowish brown color; moisture content of 7.42%; protein content of 89.90%; fat content of 0.04%; ash content of 0.06%; and amino acid composition of glycine (22.15%),proline (11.07%) andalanine (11.20%).


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