PENGARUH KONSENTRASI RAGI Saccharomyces cerevisiae DAN LAMA FERMENTASI TERHADAP KUALITAS CUKA TOMI-TOMI (Flacourtia inermis)

2015 ◽  
Vol 4 (2) ◽  
pp. 50-55
Author(s):  
Sandra J Nendissa ◽  
Rachel Breemer ◽  
Nikholaus Melamas

This objectives of this research were both to study and determine the best level of concentration of yeast Saccharomyces cereviseae and period of fermentation on the quality of tomi-tomi vinegar (Flacourtia inermis). A completely randomized experimental design with two factors of treatment was applied in this research. The first factor was concentration of yeast S. cereviseae having four levels of tretament, i.e.: without the addition of yeast 0.5, 1 and 1.5 g yeast. The second factor was period fermentation with 1, 2, 3, 4, and 5 weeks. The result indicated that the concentration of yeast S. cereviseae 1.5 g and period fermentation 5 week produced a good tomi-tomi vinegar with total acids 51.22%, total dissolved solids 8.35, total sugar 8.07% and pH 5.40.

2019 ◽  
Vol 7 (1) ◽  
pp. 98
Author(s):  
Yohannes Eko Putra Simanullang ◽  
Ida Bagus Wayan Gunam ◽  
Ni Made Wartini

The purpose of this study is to determine the type and concentration of stabilizers used in the functional drinks of salak juice and determine the type and concentration of stabilizers to produce the best characteristic salak juice. The main research aims to determine the type and concentration of stabilizers that product of salak juice. Primary research carried out by using a randomized block design (RBD) consisting of two factors The stabilizers used in this reseach that CMC, arabic gum, and gelatin. Concentration of the stabilizers used was 0.10%, 0.15%, 0.20% and 0.25%. The results showed that the type of stabilizers, concentration of stabilizers and interaction affected on the characteristics of functional fruit salak juice. The type and stabilizer concentration had an effect on total dissolved solids, viscosity, total sugar, stability, color scoring test, taste scoring test, aroma scoring test, and overall acceptance, but did not affect pH and total acid. The CMC stabilizer with a concentration of 0.25% is the best treatment for producing salak juice with characteristics of pH 4.12, total dissolved solids 13.60oBrix, total acid 0.58%, viscosity 32.0cP, total sugar 2.45%, stability with absorbance 0.580A, the color scoring rate was 3.85 (transparan yellow-pale yellow), the scoring rate was 3.80 (normal-specific), the level of aroma was 3.70 (normal-specific) and the level of overall accepted was 3.70 (normal – like). Keywords : Salak  juice, Stabilizers, Concentration , CMC, gelatin, gum arab


2020 ◽  
Vol 9 (2) ◽  
pp. 48-57
Author(s):  
Helen C D Tuhumury ◽  
Agustina Souripet ◽  
Michael Warlauw

This research was aimed to determine the effect of different tongka langit banana puree concentration on the physical, chemical, and sensory characteristics of muffin and determine the exact concentration of muffin with the best quality. A complete randomized experimental design with four levels of concentrations, i.e. 0% (control), 70%, 80%, and 90% was applied in this research. Results showed that the best physical, chemical, and sensory properties of muffins were obtained with the addition of 80% tongka langit banana puree.  A muffin with this respective concentration had an expansion volume of 118%, moisture, ash, vitamin, and total sugar contents of 26.09%, 1.56%, 0.60%, and 15.10%, subsequently. Based on its sensory characteristics, muffin with 80% banana puree was mostly preferred by panelists on aroma and overall likeness. The sensory characteristics of tongka langit banana were also maintained in the muffin. Keywords: muffin, physicochemical, sensory, tongka langit banana puree   ABSTRAK Penelitian ini bertujuan untuk menentukan pengaruh konsentrasi puree pisang tongka langit terhadap karakteristik fisik, kimia dan organoleptik muffin dan menentukan konsentrasi puree yang tepat yang menghasilkan muffin dengan karakteristik terbaik. Rancangan Acak Lengkap dengan faktor tunggal konsentrasi puree pisang tongka langit dengan level 0% (kontrol), 70%, 80%, dan 90% digunakan dalam penelitian ini. Hasil penelitian menunjukkan bahwa puree dengan konsentrasi 80% merupakan perlakuan yang tepat untuk menghasilkan muffin dengan karakteristik terbaik secara fisik, kimia dan organoleptik. Muffin dengan puree pisang tongka langit 80% memiliki volume pengembangan 118%, kadar air 26,09%, kadar abu 1,56%, kadar vitamin C 0,60%, total gula 15,10% dan lebih disukai panelis pada kategori aroma dan overall serta lebih mempertahankan karakteristik pisang tongka langit pada muffin. Kata Kunci: fisikokimia, muffin, organoleptik, puree pisang tongka langit


2019 ◽  
Vol 7 (3) ◽  
pp. 401
Author(s):  
Muhamad Erwin Efendi ◽  
Amna Hartiati ◽  
Lutfi Suhendra

This study aims to determine the effect of type and concentration of acid on the characteristics and best treatment of liquid sugar from the hydrolysis process. This study used a factorial randomized block design with two factors, namely treatment of type and concentration of acid as the first factor used, namely: 3%, 4%, and 5%. Each treatment is grouped into 2 based on the time of implementation. The second factor consists of 3 types of acids, namely: HNO3, H2SO4, and HCl. Each treatment is grouped into 2 based on the time of implementation. The variables observed were total sugar, Dextrose Equivalent, total dissolved solids, and reducing sugars. The results showed that the type treatment and acid concentration had a significant effect (P <0.05). The results of hydrolysis of the remaining extract of the best taro starch, namely by using the type and 5% HNO3 concentration, namely with the characters namely total sugar (4.94), reducing sugar (4.74%), total dissolved solids (6.13% brix), and DE (96.65%). Keywords: acid hydrolysis, residual extraction of starch, taro, liquid sugar, acid.


2018 ◽  
Vol 248 ◽  
pp. 04004
Author(s):  
Vike Darliyasi ◽  
Kurnia Herlina Dewi ◽  
Budiyanto

Bioethanol from Rimau Gerga Lebong (RGL) orange waste is one of the solution to overcome fuel oil problem. The aim of this research is to get the type of microorganisms and fermentation time that produce the highest ethanol from RGL orange waste. The research method used was Randomized Block Design (RBD) of two factors, namely type of microorganisms (Trichoderma viride, Saccharomyces cerevisiae, and Trichoderma viride + Saccharomyces cerevisiae) and fermentation time (3 days, 5 days, and 7 days. Within the three type of microorganisms with variations of fermentation time showed that the pH was able to carry out the fermentation process smoothly. The highest total dissolved solids were in the type of Trichoderma viride 3 days and 5 days, and the type of mix of microorganisms on the 3rd day. The highest ethanol content is in the type of Sachharomyces cerevisiae for 7 days. ANOVA result showed that the interaction between two treatments on the total dissolved solids experienced significant differences, so it continue with the DMRT test at a significant level of 0.5%. However, it is different from the results of ANOVA on ethanol content which showed that there were significant differences between ethanol content and types of microorganisms, but there was no significant difference on fermentation time


2013 ◽  
Vol 726-731 ◽  
pp. 3538-3541
Author(s):  
Kun Xiao ◽  
Chang Chun Zou ◽  
Biao Xiang

In order to research the groundwater quality of the Taikang Formation in Tertiary in west of Daqing Oilfield, resistivity logging data of 140 wells in the study area were analyzed to forecast the groundwater total dissolved solids (TDS) distribution of the plane. When the resistivity logging value (Rt) of the Taikang Formation in Tertiary is above 45Ω.m and its corresponding value of Formation water TDS is below 1000 mg/L, the quality of groundwater accords with life standards for drinking. The south area of Hongweixing well area and the east of Xishuiyuan well area, including Ranghulu, Qianjincun, Dulitun and Nanshuiyuan well area are favorable for high quality groundwater. The research provides the evidences to evaluate the groundwater quality in west Daqing Oilfield and determine specific well location, improving the efficiency of exploring the underground drinking water.


2019 ◽  
Vol 8 (2) ◽  
pp. 48-52
Author(s):  
Vita N Lawalata ◽  
Illonkha Maatoke ◽  
Gilian Tetelepta

Food bar is high caloric food made from blended food, enriched with nutrients, then formed into a compact bar shape. It is usually consumed either as breakfast or as snack food and is better than cakes or chocolates. This study was aimed to characterize the effect of canarium nut addition on the making of banana puree food bar. A completely randomized experimental design with four levels of treatments, i.e. 0%, 5%, 10% and 15% was applied in this research. Result showed that banana puree food bar with canarium nut addition caused not only a decrease in moisture, ash, and carbohydrate contents of 3.96%, 0.1%, and 2.6% but also an increase in protein content and fat content of 1.99% and 4.68%, respectively. Keywords: canarium nut, food bar, Musa troglodytarum, puree, tongka langit banana   ABSTRAK Food bar merupakan produk pangan berkalori tinggi yang dibuat dari campuran bahan pangan (blended food), diperkaya dengan nutrisi, kemudian dibentuk menjadi bentuk padat dan kompak (a food bar form). Food bar biasanya digunakan untuk sarapan atau sebagai makanan ringan (camilan), food bar merupakan makanan yang lebih baik dibandingkan dengan kue ataupun coklat. Penelitian ini bertujuan untuk mengkarakterisasi pengaruh penambahan kenari dalam pebuatan food bar puree pisang tongka langit. Penelitian ini menggunakan rancangan acak lengkap faktor tunggal dengan perlakuan penambahan kenari 0%, 5%, 10%, 15%. Hasil penelitian menunjukkan bahwa food bar puree pisang tongka langit dengan penambahan kenari menyebabkan terjadinya penuruanan kandungan air, abu, karbohidrat yaitu 3,96%, 0,1%, 2,6% dan peningkatan kadar protein sebesar 1,99% dan lemak 4,68%. Kata kunci: food bar, kenari, pisang tongka langit, puree, Musa troglodytarum


2015 ◽  
Vol 16 (SE) ◽  
pp. 395-403
Author(s):  
Abbas Ghaffari Habib ◽  
Seyed Hadi Khatami

In Bahar County (Iran), rivers are among the important sources of water for the agricultural sector. Therefore, this research evaluated the parameters of temperature, pH, Total Dissolved Solids (TDS), turbidity, nitrate, total phosphate, dissolved oxygen (DO), Biological Oxygen Demand (BOD5), and fecal coliform at five stations for five months (from February 2015 to June 2015) to determine water quality in the rivers. Based on this evaluation, the NSFWQI index was calculated and, finally, the routes of the rivers were zoned. The best water quality was recorded at Station Number 3 with the NSFWQI Value of 80 in January, and the worst at Station Number 5 (latgah) with the NSFWQI Value of 37 in June. Based on the mean NSFWQI indices, water quality was Medium at Stations Number 1, 2, and 4, good at Station Number 3, and bad at Station number 5.


2020 ◽  
Vol 42 ◽  
pp. e43469
Author(s):  
Abimael Gomes da Silva ◽  
Edilson Costa ◽  
Talita Cristina Campos Pereira ◽  
Flávio Ferreira da Silva Binotti ◽  
Erivaldo José Scaloppi Junior ◽  
...  

This study aimed to evaluate the quality of Hevea brasiliensis seedlings, a GT1 clone, produced in protected environments in a variety of substrates. The treatments consisted of 13 substrates composed of combinations of cattle manure, soil from a ravine, medium vermiculite, superfine vermiculite and washed fine sand and two environments: a greenhouse with 50% shade using aluminized screen and a plant nursery with 50% shade using a Sombrite® screen. There were no replications of the environments; therefore, each one was considered an experiment. For each environment, a completely randomized experimental design with five replications was used to evaluate the substrates. Subsequently, the average squares of the residuals of individual variance analyses of these treatments (substrates) were evaluated, and because they did not exceed an approximate ratio of 7:1, a combined analysis of experiments was performed with Sisvar software. Two hundred eighty days after sowing, the dry weight, plant height, stem diameter, diameter at five centimeters above soil and the seedling quality indices were evaluated. Results indicated that substrates with a low amount of manure and sand and a high amount of vermiculite (S9 and S13) produced rubber tree seedlings of high-quality. The environment with greater radiation availability was better for the development of high-quality rubber tree seedlings.


Jurnal Fisika ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 37-46
Author(s):  
Rahmi Putri Wirman ◽  
Indrawata Wardhana ◽  
Vandri Ahmad Isnaini

Total Dissolved Solids (TDS) and turbidity of water are parameters to determine the quality of water. In this research, instruments development and study of accuracy level for TDS meter and turbidimeter have been made. Instruments were made using TDS sensor and turbidity sensor that were inexpensive and available on the market. The samples used for instruments examination were water with dye (Rhodamine B) and powder of coffee as impurities. The results showed that the sensors worked properly and provided a better accuracy in measuring water samples with coffee impurities than dye impurities. The inaccuracy on the determination of water samples with dye impurities due to dye particles which have soluble properties on water and microscopic size than particles of coffee.


2017 ◽  
Vol 13 (15) ◽  
pp. 69
Author(s):  
Sohounou Marc ◽  
Vissin Expédit Wilfrid ◽  
Sintondji Luc Olivier ◽  
Houssou Christophe S. ◽  
Agbossou K. Euloge ◽  
...  

Water, source of life, is also a source of disease when it is polluted. The aim of this study is to analyze the physicochemical quality and the bacteriological quality of the wells, boreholes and tank for drinking water in the Commune of Allada. The methodology is based on the collection of data, data processing and analysis carried out at the Laboratory for Quality Control of Water and Food (LCQEA) of the Ministry of Health. From the water sampling carried out at three (03) traditional wells, two (02) boreholes, two (02) tanks and water of river (02), bacteriological and physicochemical analysis were performed. The results showed that pH is higher at the tank than other water sources. Well 3 (P3) has a very high electrical conductivity (EC) which was 384.95 μS / cm and 192.47 mg / L for total dissolved solids (TDS). The tank 2 exhibited high value in pH 9.14; 71.72 (μS / cm) for the electrical conductivity (CE) and 35.86 mg / L, in total dissolved solids (TDS). Well 2 (P2) has a high turbidity of 4.53 (NTU) at all analyzed water points. The concentration of iron, copper nickel and cobalt remains low(less than 0.4 mg / L).Wells 2 and tank 1 are concentrated in lead, respectively 20.75mg / L and 13.71mg / L. Tank 1 and 2 have a high concentration of cadmium compared to other water points. The presence of Escherichia coli with a high concentration at home SONEB (39 CFU) and at well 2 (7.10 2 ) was found. In view of these results some recommendations were made.


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