scholarly journals Comparison of Nata Quality From Cassava Peels (Manihot esculenta), Ladyfinger Bananas Peels (Musa acuminata Colla), and Durian Peels (Durio zibethinus)

Elkawnie ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 146
Author(s):  
Mashuri Masri ◽  
Irhamniah Irhamniah ◽  
Ulfa Triyani A Latif ◽  
Rusny Rusny

Abstract : Agricultural waste is composed of carbohydrates which can be be used as a growth medium for bacteria Acetobacter xylinum to produce fermented products in the form of nata.  Producing nata from fruit waste such as Cassava peels (Manihot esculenta), Ladyfinger bananas peels (Musa acuminata Colla) and Durian peels (Durio zibethinus) is one of the efforts to reduce environmental pollution. This study aims to compare the quality of nata from Cassava peels (endodermis), Ladyfinger bananas peels (endodermis) and durian peels (endodermis) based on the gel thickness, nata yield and organoleptic test. From the results of the study concluded that Durian peels and Ladyfinger bananas peels could be used as an essential ingredient in making nata. Nata de durio is the best nata product in terms of thickness, nata yield and organoleptic tests. Meanwhile Cassava peels cannot be used as raw material for making nata.Abstrak : Limbah pertanian terdiri dari karbohidrat, yang dapat digunakan sebagai media pertumbuhan bagi bakteri Acetobacter xylinum untuk menghasilkan produk fermentasi dalam bentuk nata. Memproduksi nata dari limbah buah seperti kulit ubi kayu (Manihot esculenta), kulit pisang Ladyfinger (Musa acuminata Colla), dan kulit Durian (Durio zibethinus) adalah salah satu upaya untuk mengurangi pencemaran lingkungan. Penelitian ini bertujuan untuk membandingkan kualitas nata dari kulit ubi kayu (endodermis), kulit pisang emas (endodermis), dan kulit durian (endodermis) berdasarkan ketebalan gel, rendemen nata, dan uji organoleptik. Hasil penelitian menyimpulkan bahwa kulit Durian dan kulit pisang emas dapat digunakan sebagai bahan penting dalam membuat nata. Nata de durio adalah produk nata terbaik dari segi ketebalan, rendeman, dan uji organoleptik, sedangkan kulit ubi kayu tidak dapat digunakan sebagai bahan baku pembuatan nata.

2019 ◽  
Vol 125 ◽  
pp. 07004
Author(s):  
Ilga Mega Kusuma ◽  
Syafrudin ◽  
Bambang Yulianto

Fish waste needs to be a concern because the accumulation of fish waste will have environmental pollution. Therefore, research needs to be done to reduce the impact of environmental pollution. This study aims to treat fish waste which will be used as raw material for compost which is one of the efforts to reduce the accumulation caused by fish waste. The method used is survey, observation, and literature study. The composting process uses fish waste as a starter in the composting process. Before starting the composting is to separate fish waste from other wastes to facilitate the composting process. During composting the temperature conditions are maintained by reversing compost and color and odor changes are observed. The results showed that the levels of C-Organic; 51.7%, Nitrogen; 8.3%, Phosphor; 4.8%, and Potassium; 1.6%. From the results of C-Organic, Nitrogen, Phosphorus, and Potassium tests, the levels were quite high compared to the quality of SNI compost, so compost from fish waste where the Tambak Lorok Market can be used as fertilizer.


2016 ◽  
Vol 680 ◽  
pp. 335-338 ◽  
Author(s):  
Jun Zhang ◽  
Hua Bo Li ◽  
Yong Hua Duan

Aluminum dross is the staple solid waste in electrolytic aluminum industry. Taking full advantage of the aluminum dross is of great significance for controlling environmental pollution and saving resource. In this work, brown fused alumina is successfully prepared using aluminum dross as raw material through different pretreatments for aluminum dross. The results show that the brown fused alumina product is comprised of α-Al2O3 (ca.95%), NaCl (ca.1~3%) and CaF2 (ca.1~3%), and contents of the other components are as follows: MgO 0.33%, SiO2 1.12%, Fe2O3 0.41%, CaO 0.58%, TiO2 0.13%, K2O 0.05%, Na2O 0.87% and V2O5 0.92%. This quality of the resulting brown fused alumina can fully meet the national standards of China (GB/T 2478-2008).


2020 ◽  
Vol 32 (3) ◽  
pp. 703-705
Author(s):  
Lailan Ni`mah ◽  
Indri Makhyarini ◽  
Normalina

Pectin functions as an adhesive and maintains tissue stability so that it can be used in making edible coating to improve the quality of food storage. One of the producers of pectin is Musa acuminata L. peel (containing 22.4 % pectin). In order not to overgrow with microbes, it is also necessary to have antimicrobial property, which can be obtained from Cinnamomum burmannii extract. This study is about raw material preparation, pectin extraction, pectin modification, Cinnamomum burmannii extraction and edible coating manufacturing. The parameters viz. thickness test, water vapour transmission, tensile strength test, elongation at break, biodegradation, and for trials on storing beef sausage showed that 10 % sorbitol was able to withstand the rate of fungal growth for 7 days; 15 % sorbitol was able to withstand the rate of fungal growth for 5 days; and 20 % sorbitol was able to withstand the rate of fungal growth for 3 days.


2018 ◽  
Vol 5 (1) ◽  
Author(s):  
S. Akhadiarto

Feed represent especial factors of animal husbandry because owning biggest expense from production cost. Feed effi ciency must be done to increase earnings. One of effort for the matter of that is look for alternative of raw material feed of cheaper livestock that is cassava peels. Cassava peels represent waste product from cassava industry with amount 1,998 million ton in the year 2006 in Indonesia (10 percentage of corm of yielded cassava). As constraint is its amount is which have the fl uctuation so that need depository effort of cassava peels. This research aim to know infl uence of use propionic acid as preservative to quality of nutrient of cassava peels. A period of depository observed too for its quality. Research conducted by during six-month in feed industrial laboratory of indicate that addition of 0.3% propionic acids and depository period infl uence quality of nutrient of cassava peels manifestly (P0.05). Addition of 0.3% propionic acid gratuity not yet able to pursue growth of microorganism during depository. Growth of mould during depository infl uence to descend of water percentage, organics substance, protein, digesting of organic substance and digesting of dry substance.Key words : cassava pells, waste, propionic acids, nutrient.


Author(s):  
Fatma Zohra Ben Cheikh ◽  
Douadi Ali ◽  
Walid Boussebaa

Bioethanol is the only liquid fuel for gasoline engines that is renewable and immediately available since it is produced from vegetable raw material, also called biomass. Hence the name bioethanol refers originally to living plant, not to fossil fuel. It is produced by the transformation of biomass sugars by yeast which is responsible for the fermentation of production alcohol. The objective sought through this study is valuation of biomass that is possibly made for any product with low market value obtaining bioethanol which constitutes a product of high added value, for example the bio valuation of dates of poor quality called " Degla Bayda ". Physicochemical analyzes were carried out from the dates mill and during its alcoholic fermentation. Identification and purity verification analyze were undertaken for bioethanol. The results obtained show that fermentation conditions obtained that gave the optimum bioethanol yield was chosen of 36.25% at temperature 32°C, pH 5.0, yeast ratio 1g and fermentation time of 48 hours and the quality of our product is conformed with international standards.


2020 ◽  
Vol 44 (3) ◽  
Author(s):  
Dwi Ahmad Priyadi ◽  
Dyah Triasih ◽  
Sefri Ton ◽  
Ari Istanti

The negative impact of chemical fertilizers use is soil fertility declining. The situation occurs because of biological, physical, and chemical properties of the soil is decreased. Agricultural waste is a large commodity which utilization can still be optimized, for example by using as raw material for organic liquid fertilizer. Agricultural wastes that have good quality as fertilizer include goat manure, chicken excreta, and coconut husk. The utilization of agricultural waste as organic fertilizer is one way of creating sustainable agriculture. This study aims to test the quality of liquid fertilizer (bioculture) of goat manure and chicken excreta by adding various levels of coconut husk. Bioculture is made by anaerobic fermentation for 21 days. The parameters observed included levels of C-organic, N, P, and K bioculture, as well as germination tests to determine the presence of phytotoxins. The data were analyzed using one way ANOVA. The treatment of P5 (5% coconut husk) showed the highest levels of N and P, while the K content was not significantly different from the treatment of P4 (2.5% coconut husk). The germination test showed no phytotoxin activity in bioculture.


2020 ◽  
Vol 8 (2) ◽  
pp. 90-100 ◽  
Author(s):  
Dewi Selvia Fardhyanti ◽  
Achmad Chafidz ◽  
Bayu Triwibowo ◽  
Haniif Prasetiawan ◽  
Novia Noor Cahyani ◽  
...  

Rice husk is an agricultural waste which contains 50% cellulose, 25%-30% lignin and 15%-20% silica. It can be used as raw material of bio-oil. Bio-oil is liquid which produced by pyrolysis process. Bio-oil can be produced from the rice husk at 773 and 873 K. The main component of Bio-oil from rice husk pyrolysis at 773 and 873 K is phenolic compounds about 47.98% and 62.65%, respectively. It causes corrosive, low heating value, high acidity, high viscosity and unstable that causing an engine damage. The presence of phenolic compound decreases the quality of bio-oil. Therefore, it needs a process such as liquid-liquid extraction to reduce the phenolic compound using 80% methanol and 80% chloroform as a solvent. The extract and raffinate phase were analyzed using UV-Vis spectrophotometer. The aim of this research determine the effect of temperature pyrolysis for the characterization of bio-oil, the stirring speed and the temperature of the extraction for the distribution coefficient and the yield of phenolic compound. The results showed that the characterization of bio-oil produced from rice husk pyrolysis at 773 and 873 K are densities 1,040 and 1,042 Kg/m3; viscosities 9.3488 and 9.5007 cSt; acid numbers 46.75 and 52.45 mg KOH/g; pH 2.5 and 3; flash points 426 and 423 K and heating values 3.229 and 3.339 MJ/kg, respectively. The highest distribution coefficient and yield were obtained at 323 K and a stirring speed of 250 rpm. The distribution coefficient of bio-oil produced by pyrolysis at 773 and 873 K is 1.504, and 1.528, respectively. The yields of bio-oil produced by pyrolysis at 773 and 873 K are 58.885%, and 48.429%, respectively.  


Molekul ◽  
2010 ◽  
Vol 5 (2) ◽  
pp. 56
Author(s):  
Devi Silsia ◽  
Ridwan Yahya ◽  
Mucharomah Mucharomah

Optimation biokraft of fungi P. Chrysosporium through elongated incubation time on mixed stem and branch waste mangium is a solution to solve the environmental pollution problem, low quality of pulp and limited raw material. Effect of P. Chrysosporium 10 % concentration and 45 days incubation time on pre research could not decrease lignin optimally and exstractive degradation had not occured yet. The aims of the study were to observe the effect of incubation time extension, and to determine the best incubation time of P. Chrysosporium applied at 10 % concentration based on the chemical component percentage, 45, 60 and 75 days on mixed stem and branch as raw material for pulp. Results showed that increasing incubation time decreased extractive and lignin content and increased holocelulosa and alpha celulosa content. Mixed stem and branch with 10% amount and 75 day incubation time of P. Chrysosporium gave the best results for raw material of pulp.


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