scholarly journals The effect of rice types on chao properties during fermentation

Author(s):  
Meysi Azkiyah ◽  
Amran Laga ◽  
Meta Mahendradatta ◽  
Riku Shimomura

Chao is a typical Indonesian dish from Pangkep Regency that is relatively unknown to the general public. Chao is made from fermented fish, which is subsequently fermented with rice. Chao has the properties of pasta-like, light-brown color, unique flavor, slightly acidic and salty taste. Pangkep communities typically use chao as a seasoning, condiment ingredient, or as a side dish. Due to the product's attractive features, which resemble stale food, make it less appealing to consumers. It necessitates innovation and processing technologies in order to improve the quality of Chao products. This research this study aimed to find out the effect of rice variations including white rice, red rice and black rice on the characteristics of Shrimp Chao during fermentation. The testing parameters in this study were total Lactic Acid Bacteria (LAB), total lactic acid, pH, and organoleptic. The highest LAB growth was found in the red rice that is 7.67 log cfu/g with the lowest pH value of 6.02 and the highest lactic acid content (1.8%). The best organoleptic test results own by white rice-based shrimp chao with preference average score of 3.85 and red rice 3.78 which imply “like” in organoleptic scale scoring.

2011 ◽  
Vol 50 (No. 12) ◽  
pp. 553-560 ◽  
Author(s):  
P. Doležal ◽  
V. Pyrochta ◽  
J. Doležal

This study deals with effects of pressing of ensiled sugar-beet pulp and of application of a chemical preservative on the quality of fermentation process. The experimental silages had a better sensory evaluation than the control ones. In silages treated chemically with a mixture of acids, statistically significantly (P < 0.01) higher dry matter content, lowest pH value, the value of lactic acid and the lowest content of all acids in dry matter were found after 180 days of storage from the beginning of the experiment. The statistically significantly (P < 0.01) highest lactic acid content (43.39 ± 1.25 g/kg DM) was determined in the control pressed silage. The highest LA/VFA ratio (1.40 ± 0.18) was calculated for non-pressed experimental silage (D – 3 l/t of KEM). As compared with untreated control the highest percentage (P < 0.01) of lactic acid and of all fermentation acids was found out in silage D treated with 3 l/t of KEM (58.18 ± 0.47 g/kg DM). Undesirable butyric and propionic acids were not found in chemically treated silage samples (C, D, E, F). However, the highest (P < 0.01) contents of butyric acid (26.37 ± 0.91 g/DM) and propionic acid (4.58 ± 0.78 g/DM) were measured in untreated non-pressed silage samples (B). The highest (P < 0.01) contents of acetic acid and ethanol were found in control silage samples. The quality of these silages was evaluated as very low.  


2012 ◽  
Vol 524-527 ◽  
pp. 2167-2171
Author(s):  
Ting Ting Ning ◽  
Chun Cheng Xu ◽  
Hui Li Wang ◽  
Wei Hao ◽  
Heng Lei

This experiment was conducted to determine the ensiling characteristics and microbial changes of fodder ramie silage treated without additive (Control), or with molasses (M), lactic acid bacteria (LAB), and mixtures of lactic acid bacteria and molasses (LABM). Triplicate samples were randomly opened on days 0, 3, 7, 14, 28 and 60 of ensiling for sampling and the contents were processed for quality assessment and laboratory analysis. Compared with control silage, addition of M and LABM decreased pH and butyric acid while increasing lactic acid during ensiling (P < 0.05). For the LAB treatment, the pH value declined slowly at initial days then kept relatively stable at about 5.39 and the concentration of lactic acid increased for the first 7 days then maintained stable until day 60. The control silage showed a rise in pH and a significant decline in lactic acid concentration at later stage. Microbial changes had similar trend during ensiling for all the treatments where the lactic acid bacteria increased at initial days then showed a decline at later stage. Furthermore, LAB treatment had the highest (P<0.05) lactic acid bacteria population at almost all ensiling periods. It was concluded that both M and LABM treatment can improve the fermentation quality of fodder ramie silage to some extent, but the effects of adding lactic acid bacteria still need further research.


Author(s):  
Rizki Putri Nur Laili ◽  
Farida Arinie Soelistianto Arinie Soelistianto ◽  
Nanak Zakaria ◽  
Nurul Hidayati

Tofu has the best quality vegetable protein because it has the most complete amino acid composition and is believed to have high digestibility (85% -98%). According to SNI 01-3142-1998 and SII No. 0270-1990 testing criteria for soy tofu based on smell, taste, color, appearance, or texture. Tofu soybeans are prone to physical or texture damage due to factors such as inappropriate pH levels and insufficient storage which results in damaged tofu. Therefore in this study, it is proposed to determine the elasticity of soy tofu with the parameters tested are the pH level in the manufacture of soy tofu, the storage temperature, and the capacitance value to see how thick the tofu is with a capacitive sensor using the capacitor principle. Where the parallel plate capacitor is a capacitor consisting of two parallel metal plates. The test results of all sensors are sent to the database and will be displayed on the page on the Android application which will provide real-time sensor output information to the user. Based on the results of testing on this system using a pH sensor, the pH value is around 3-4 which indicates that the pH level used is very good for use in tofu processing, at pH 4.56 with storage at 29 ° C the highest elastic capacitance value is 3.58.  In testing data delivery, the throughput value is 4336,217 b / s and the smallest delay value is 0.017ms because the smaller the delay value, the better the quality of data transmission because there will be no delay in sending data.


2017 ◽  
Vol 7 (2) ◽  
Author(s):  
Ervi Herawati ◽  
Mega Royani

AbstrakGamal adalah tanaman leguminosa pohon yang dapat tumbuh dengan cepat namun pemanfaatannya sebagai bahan pakan ternak memiliki palatabilitas yang rendah akibat bau dan rasanya yang menyengat dan pahit, berasal dari senyawa kumarin, sehingga kurang disukai oleh ternak. Salah satu alternatif yang dapat digunakan untuk menghilangkan zat antinutrisi tersebut yaitu dengan cara dibuat silase. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan molasses terhadap kualitas silase pada daun gamal terfermentasi yang memberikan hasil silase terbaik. Uji kualitas yang diukur adalah pH, persentase asam laktat, dan kadar amonia. Metode penelitian yang digunakan adalah metode eksperimental dengan metode Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 4 ulangan. Perlakuannya terdiri dari penambahan molasses pada daun gamal yaitu P1=1%, P2=2%, P3=3%, P4=4%, dan P5=5%. Hasil pengujian menunjukkan bahwa kualitas silase daun gamal yang optimal didapat pada perlakuan 4 (P4=4% molasses) yang menghasilkan rata-rata nilai pH sebesar 4,18, persentase asam laktat 1,143%, dan kadar NH3 sebesar 6,06 mM. Kata kunci: asam laktat, gamal, molases, NH3, pH. AbstractGliricidia sepium is a leguminous tree that grows rapidly but its use as animal feed material has low palatability due to its stinky smell and bitter taste, caused by coumarin compound, hence it is less favored by livestock. One alternative way to remove this compound is by making silage. This study was aimed to determine the effect of adding molasses to the quality of silage on fermented Gliricidia sepium leaves to obtain the best silage result. Quality tests measured include pH, lactic acid percentage, and ammonia levels. Method used was experimental Completely Randomized Design with 5 treatments and 4 replications. The treatment consisted of the addition of molasses on the Gliricidia sepium leaf, P1 = 1%, P2 = 2%, P3 = 3%, P4 = 4%, and P5 = 5%. Results showed that the optimal quality of Gliricidia sepium leaf silage was obtained from P4 (4% molasses) which resulted in average pH value of 4.18, lactic acid percentage 1.143%, and NH3 level of 6.06 mM.Keywords: lactic acid, Gliricidia sepium, molasses, NH3, pH.


2020 ◽  
Vol 4 (2) ◽  
pp. 142-150
Author(s):  
Sofia nggoweng ◽  
Ni Made Ayu Suardani singapurwa ◽  
I Nyoman Rudianta

Instant spices is a mixture of several spices that are young to be found in the market at an affordable price, and are usually used immediately as a cooking spice for certain foods. This study aims to determine the quality of the "Base Genep" instant spices sold in the East Denpasar Market. This research is a descriptive study using survey and experimental methods in the laboratory. The number of samples to be studied was 44 samples from 81 populations. The variables in the study were moisture content, pH, Escherichia coli, Total Plate Count (TPC) and mold. The results showed that from 44 samples of "Basa Genep" instant seasoning water content test results obtained were 21.62% - 23.707%, while the pH value of 44 samples of "Basa Genep" instant spice was obtained between 2.2-2.5 so that it meets the requirements.


2017 ◽  
Vol 2 (4) ◽  
Author(s):  
Sarlini Martha ◽  
Yurliasni Yurliasni ◽  
Yusdar Zakaria

Abstrak.  Kualitas susu fermentasi sangat dipengaruhi oleh pertumbuhan mikroba, kadar air, proses pengolahan, suhu dan lama penyimpanan. Variasi dan fluktuasi suhu pada saat penyimpanan dapat mempengaruhi mutu baik secara fisik, kimia dan mikrobiologi. Penelitian bertujuan untuk mempelajari pengaruh suhu dan lama penyimpanan yang berbeda pada susu Acidophillus yang ditambah buah kurma. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) pola faktorial yang terdiri dari 2 faktor yaitu faktor A (suhu) terdiri dari A1=5 °C, A2=10 °C. Faktor B (lama penyimpanan) terdiri B1=0 hari, B2=14 hari, B3=28 hari, B4=42 hari dan dianalisis meliputi viabilitas L. acidophillus, nilai pH, kadar asam laktat, sineresis, dan kadar protein. Hasil analisis menunjukkan bahwa lama penyimpanan berpengaruh sangat nyata (P0.01) terhadap viabilitas L. acidophillus, nilai pH, kadar asam laktat dan kadar protein, akan tetapi pada sineresis tidak terdapat pengaruh yang nyata.  Disimpulkan bahwa lama penyimpanan dapat mengakibatkan pertumbuhan L. acidophillus tidak stabil dan terjadinya perubahan karakteristik fisik susu Acidophillus.Study of dates Potensil (Phoenix dactylifera L), Temperature and Storage Length on Change of Acidophillus milk CharacteristicsAbstract. The quality of fermented milk is strongly influenced by the growth of microbes, moisture content, processing, temperature and storage time. Variations and fluctuations in temperature during storage may affect the quality of both physical, chemical and microbiological. The study aimed to study the effect of temperature and different storage time on Acidophillus milk plus dates.This research uses Completely Randomized Design (RAL) of factorial pattern consisting of 2 factors ie factor A (temperature) consisting of A1 = 5 °C, A2 = 10 °C. Factor B (storage duration) consisted of B1 = 0 days, B2 = 14 days, B3 = 28 days, B4 = 42 days and analyzed including viability of L. acidophillus, pH value, lactic acid level, syneresis, and protein content.The results showed that storage duration had significant effect (P 0.01) on the viability of L. acidophillus, pH value, lactic acid level and protein content, but there was no significant effect on sineresis. It was concluded that long storage may lead to unstable growth of L. acidophillus and the change in physical characteristics of Acidophilus milk.


Processes ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 1283
Author(s):  
Zhiqiang Sun ◽  
Tingting Jia ◽  
Run Gao ◽  
Shengyang Xu ◽  
Zhe Wu ◽  
...  

The objective of this experiment was to evaluate the effects of the chopping length and additive on the fermentation characteristics and aerobic stability in silage of Leymus chinensis. L. chinensis was chopped to 1–2 cm and 4–5 cm, and immediately ensiled with the three treatments, i.e., 2% sucrose (fresh weight basis; SU), 1 × 105 cfu/g Lactobacillus plantarum (LP) or 1 × 105 cfu/g LP plus 2% sucrose (SU+LP). Silage treated with distilled water served as the control. After silage processing for 30 and 90 d, the fermentation quality of L. chinensis silage was evaluated. The composition of the fermentation products and the pH value in the silage were determined at 1, 3, 5 and 7 d after opening the silo. The results showed that in L. chinensis silage there was a lower pH value, higher lactic acid content and better aerobic stability at the 1–2 cm length than those at the 4–5 cm (p < 0.001). When the chopping length was 4–5 cm, the addition of either LP or SU+LP increased the content of lactic acid and acetic acid, and decreased the pH value and butyric acid content, compared to those of the control and SU treatment (p < 0.001). Furthermore, combination treatment of SU+LP performed better than LP alone, and the aerobic stability time of L. chinensis silage at 4–5 cm without any additives was the worst. In conclusion, enhanced fermentation quality and aerobic stability can be obtained by processing L. chinensis silage with the shorter length. When the L. chinensis is cut longer, e.g., 4–5 cm in this study, LP or SU+LP could be used as an effective method to improve the fermentation quality and aerobic stability of L. chinensis silage.


ZOOTEC ◽  
2019 ◽  
Vol 40 (1) ◽  
pp. 124
Author(s):  
Agnes C. Korengkeng ◽  
A. Yelnetty ◽  
Rahmawati Hadju ◽  
M. Tamasoleng

THE PHYSICOCHEMICAL AND MICROBIAL QUALITY OF SINBIOTIC YOGHURT GIVEN DIFFERENT LEVEL OF MODIFIED STARCH OF PURPLE UWI BULB (Dioscorea alata). An experiment was done in order to determine the level of modified starch of purple uwi bulb (Dioscorea alata) which best for syneresis, pH and total lactic acid bacteria of synbiotic yoghurt.  Completely Randomized Design (CRD) was used in this experiment with 6 treatments as follows P0 = yoghurt without modified starch purple uwi bulb, P1 = yoghurt + 0,1% modified starch purple uwi bulb, P2 = yoghurt + 0,2% modified starch purple uwi bulb, P3 = yoghurt + 0,3% modified starch purple uwi bulb, P4 = yoghurt + 0,4%  modified starch purple uwi bulb dan P5 = yoghurt + 0,5 modified starch purple uwi bulb; and three repetitions   each treatment. Measurements taken were syneresis, pH value, total of acid lactate bacteria. Data obtained were analyzed using ANOVA and Tuckey’s test was used to inspect treatment differences among group means.  It found in this research that application of modified starch of purple uwi bulb in symbiotic yoghurt gave a significant effect (P<0,01) on pH value and total lactic acid bacteria but not on syneresis. However, the syneresis values tendency decreased as the level of modified starch of purple uwi bulb increased.  The pH of symbiotic yoghurts given modified starch were ranged between 5.0 – 5.4 and the lowest pH was found in yoghurt with 0.3% modified starch added, meanwhile the total lactic acid bacteria of symbiotic yoghurts given modified starch were ranged between log 10-78.65 – log10-7 8.87 and the highest total lactic acid bacteria was found in yoghurt with 0.2% modified starch added.  It concluded in this research that the best quality of symbiotic yoghurt was in yoghurt with addition of modified starch of purple uwi bulb 0.3%.  Keywords: Sinbiotic Yoghurt, Modified Starch of Ubi Purple Tuber, Sineresis, pH value, BAL Total


2013 ◽  
Vol 29 (1) ◽  
pp. 105-114
Author(s):  
B. Dinic ◽  
N. Djordjevic ◽  
D. Terzic ◽  
M. Blagojevic ◽  
J. Markovic ◽  
...  

In this experiment, wilted masses of red clover of cultivar K-17 from the first cut was ensiled in three treatments: a) no additives, b) with the addition of corn (6% of biomass) and c) with the addition of inoculant BioStabil Plus. The experiment design was according to the method of a completely random plan (single factorial trial) in triplicates. Based on the results it can be concluded that the wilted biomass of red clover can be successfully ensiled without additives. However, the inoculation of red clover biomass achieves the most favourable pH value (4.20), the lowest level of degradation of the protein expressed in the amount of NH3-N (107.7 gkg-1 N), the largest production of lactic acid (91.3 gkg-1 DM) and acetic acid (42.6 gkg-1 DM), in the absence of butyric acid. Adding maize meal in the amount of 6% contributed to somewhat more favourable fermentation and increase of the energy value of silage. When using the DLG and Weissbach methods for assessing the quality of silage, all silages were classified into the first class. Contrary to this, according to the Zelter method, control and inoculated silages were evaluated as class III, because of the large amounts of acetic acid. In practices inoculants based on homo-and hetero-fermentative bacteria of lactic acid fermentation are recommended for use, because the increased production of acetic acid contributes positively to te aerobic stability of silage.


10.5219/1273 ◽  
2020 ◽  
Vol 14 ◽  
pp. 580-586
Author(s):  
Bahytkul Assenova ◽  
Eleonora Okuskhanova ◽  
Maksim Rebezov ◽  
Oksana Zinina ◽  
Nadezhda Baryshnikova ◽  
...  

Germinated cereal crops are widely used in the technology of meat products, as they contain a significant amount of vitamins, minerals and protein. This study presents the formulation and processing technology of meat pate with the addition of wheat (Triticum aestivum) germ. Three treatments of 10, 15 and 20% of germinated wheat (GW) were prepared. Wheat sprouts were crushed and mixed for 6 minutes in a meat mixer together with broth, oat flour, and spices to obtain a smooth mass. This was mixed with minced meat and grinded on a cutter to obtain a more uniform finished paste that was dosed into lamister or tin containers, sterilized and stored for 2 years. This was followed by the determination of its proximate composition, water-binding capacity, and sensory analysis. Results show that the meat pate with 10% of GW in comparison with the control, contain more protein, is more nutritious with a lower fat content of 6.8% and a lower carbohydrate content of 11.3%. The results of organoleptic evaluation showed that the highest average score was for the meat pate with a recipe that contains 10% of germinated wheat, and the lowest was for the meat pate containing 20% of germinated wheat. Meat pate containing 10% of germinated wheat has a higher water-holding capacity and the optimal pH value. This study suggests that wheat can be used in appropriate formulation to improve the organoleptic quality of meat pate.


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