CHEMICAL PROPERTIES, PARTICLE SHAPE, AND SIZE OF FERMENTED LOCAL WHITE CORN FLOUR OF ANOMAN FS VARIETY

2018 ◽  
Vol 80 (5) ◽  
Author(s):  
Rahmawati Rahmawati ◽  
Rijanti Rahaju Maulani ◽  
Dede Saputra
Keyword(s):  
Fermentation Process ◽  
Ph Value ◽  
Chemical Properties ◽  
Chemical Characteristics ◽  
Corn Flour ◽  
Fermentation Processes ◽  
Toxic Culture ◽  
Indigenous Yeast ◽  
Shape And Size ◽  
Chemical Contents

This research aims to study the chemical characteristics, the shape and size of the particles from local white corn flour fermented with indigenous yeast and mold. The fermentation processes studied are 1) fermentation with the addition of complete yeast and mold at 0 hour of fermentation and addition of amylolitic cultures at 16 hours of fermentation (AC1); 2) fermentation with the addition of complete yeast and mold at 0 hour, amylolitic cultures at 16 hours and 32 hours (AC2); and 3) fermentation with the addition of non-toxic culture at 0 hour, amylolitic cultures at 16 hours and 32 hours (NTS). Observations are conducted at 36, 48, 60, and 72 hours of fermentation. The results show that the addition of AC1, AC2, and NTS starters during fermentation generally lowers the moisture, ash, protein, fat, and amylose and pH value of the corn flour. Lowered chemical contents of local white corn flour due to the fermentation process is beneficial, both in terms of nutritional contents and functional properties. Another advantage is that the flour does not smell sour. All of the flours have the same granule shape as the control has, but addition of the starter AC1, AC2, and NTS makes smaller corn flours than the control.

scholarly journals A LAPS-Based Differential Sensor for Parallelized Metabolism Monitoring of Various Bacteria

Sensors ◽  
2019 ◽  
Vol 19 (21) ◽  
pp. 4692 ◽  
Author(s):  
Shahriar Dantism ◽  
Désirée Röhlen ◽  
Torsten Wagner ◽  
Patrick Wagner ◽  
Michael J. Schöning
Keyword(s):  
Fermentation Process ◽  
Metabolic Response ◽  
Ph Value ◽  
Cellular Metabolism ◽  
Cost Effective ◽  
Lactobacillus Brevis ◽  
Cell Number ◽  
Fermentation Processes ◽  
Number Variation ◽  
Set Up

Monitoring the cellular metabolism of bacteria in (bio)fermentation processes is crucial to control and steer them, and to prevent undesired disturbances linked to metabolically inactive microorganisms. In this context, cell-based biosensors can play an important role to improve the quality and increase the yield of such processes. This work describes the simultaneous analysis of the metabolic behavior of three different types of bacteria by means of a differential light-addressable potentiometric sensor (LAPS) set-up. The study includes Lactobacillus brevis, Corynebacterium glutamicum, and Escherichia coli, which are often applied in fermentation processes in bioreactors. Differential measurements were carried out to compensate undesirable influences such as sensor signal drift, and pH value variation during the measurements. Furthermore, calibration curves of the cellular metabolism were established as a function of the glucose concentration or cell number variation with all three model microorganisms. In this context, simultaneous (bio)sensing with the multi-organism LAPS-based set-up can open new possibilities for a cost-effective, rapid detection of the extracellular acidification of bacteria on a single sensor chip. It can be applied to evaluate the metabolic response of bacteria populations in a (bio)fermentation process, for instance, in the biogas fermentation process.

scholarly journals Impact of Different Processing Methods on Physico-chemical Characteristics and Antioxidant Activity of Peanut Milk

2021 ◽  
Author(s):  
T. Siva Sakthi ◽  
V. Meenakshi ◽  
S. Kanchana
Keyword(s):  
Antioxidant Activity ◽  
Oxidative Damage ◽  
Shelf Life ◽  
Ph Value ◽  
Chemical Properties ◽  
Chemical Characteristics ◽  
Processing Methods ◽  
Organoleptic Characteristics ◽  
Physico Chemical ◽  
Study Results

Background: Peanut milk was prepared by different processing methods like fresh, blanching, soaking, roasting and germination methods and analyzed its physico chemical properties like pH, TSS, acidity, viscosity and colour value and also analyzed its antioxidant activity in both the selected local and CO 6 peanut varieties and studied the effect of processing methods on physico chemical properties, organoleptic characteristics and antioxidant activity. Methods: Local and CO 6 peanut variety were selected for preparation of peanut milk by five different processing methods like fresh, blanching (121°C 15 psi for 2 mins), soaking for 3 hrs, roasting (roasting for 5 mins followed by soaking 3 hrs) and germination (8 hrs) pretreatments were done. Then grinded (1:3 ratio of kernel to water), filtered by using muslin cloth, slurry was separated. Then the peanut milk was homogenized for 5 mins and double pasteurized (85°C for 15 mins). Result: The present study results reported that physico chemical properties of peanut milk (local and CO 6 variety) pH value varied between 6.3-6.9, TSS 11-13°Bx, viscosity 4.80-5.00 (Cp/100 ml), acidity 0.04-0.08 (g%), colour value L*a*b was higher (91.02, 0.97, 12.47) in control peanut milk from both the local and CO 6 variety respectively. Antioxidant activity was significantly higher in peanut milk developed from roasting method (roasting for 5 mins followed by soaking 3 hrs) in both the peanut varieties. Antioxidant activity of the peanut milk is also important for maintaining the shelf life of the product and prevent oxidative damage in human being.

KARAKTERISASI SIFAT FISIKA DAN KIMIA CUKA KAYU DARI TANDAN KOSONG KELAPA SAWIT

2014 ◽  
Vol 6 (1) ◽  
pp. 35 ◽  
Author(s):  
Rizka Karima
Keyword(s):  
Specific Gravity ◽  
Physical Properties ◽  
Solid Waste ◽  
Ph Value ◽  
Total Yield ◽  
Chemical Properties ◽  
Phenol Content ◽  
Empty Fruit Bunches ◽  
Wood Vinegar ◽  
And Chemical Properties

There’s so many pal solid waste or palm empty fruit bunches, but the utilization is not maximized, this research its to optimized utilization of palm solid waste to be wood vinegar and want to know the composition physical properties and chemical properties of wood vinegar from palm empty fruit bunches. Total yield of wood vinegar from palm empty fruit bunches its 15,94 % and total yield of charcoal its 64,58 %. GCMS result showing chemical properties from wood vinegar of burning < 100oC its obtained 19 compound and burning >100 oC its obtained 6 compound. The result physichal properties testing from crued wood vinegar its obtained specific gravity 1,0005 and 1,0010, pH value are 3,233 and 3,186, TAT content are 9,36 % and 11,12 %, phenol content its 0,44 %. The result physical properties testing from wood vinegar which has decolorizatin by activated carbon its obtained specific gravity are 0,9987 and 0,999, pH value are 3,036 and 3,012, TAT content are 8,29 % and 9,27 % and phenol content its 0,01 %.Keywords: palm bunches, wood vinegar, liquid smoke

Evaluation of tendering effect from date seed extract (P. dactalytera) in knuckle part meat

2021 ◽  
Vol 6 (1) ◽  
pp. 23-26
Author(s):  
Maryana Mohamad Nor ◽  
Lukman Ismail ◽  
Siti Nuurul Huda Mohammad Azmin ◽  
Ikhmal Hisham Abdul Halim
Keyword(s):  
Sensory Evaluation ◽  
Aqueous Extract ◽  
Animal Feed ◽  
Ph Value ◽  
Total Yield ◽  
Chemical Properties ◽  
Positive Control ◽  
Date Seed ◽  
Physico Chemical ◽  
Cooked Meat

Phoenic dactylifera (date) is a species of flowering plants in the family of Arecaceae. Date seeds are considered as a waste from many processing that produced plants pitted date, confectionery date syrup and date itself. Currently, the seeds are used mainly for animal feed in the cattle and chicken industry. In 2004, about 863,000 tonnes of date seeds are produced out of 6.9 million tonnes date. Tenderness is the major concern that affecting consumer acceptance of beef in meat industry. This study was carried out in order to investigate the effects of the bioactive compound extracted from date seed as a tenderizing agent in meat. Extraction of date seeds used a different method of extraction (Soxhlet and Maceration). The application of extracted on knuckle part of beef were performed and papain was used as a positive control and followed by the sensory evaluation. The analysis of cooked meat was performed in order to analyze the physico-chemical properties of date seeds extract. The result from the study revealed that the aqueous extract (maceration techniques) gave the best percentage of the total yield recovery with 28.44%. The physico-chemical properties of cooked meat showed the reducing of pH value after cooking. Meanwhile for the cooking yield, result showed that almost 86% of water losses during cooking for aqueous extract and positive control and 96% for negative control. According to the sensory evaluation of the cooked meat, scoring test and hedonic test were performed using One Way Anova. The result for texture is 6.10±2.1, juiceness is 5.87±1.76 and taste is 6.80±1.34. All attributes have no significant different at p <0.05 between aqueos extract, and positive control. A general acceptance shows that no significant different between aqueos extract (6.50±2.0) and positive control (7.13±1.98). The result suggested that the tenderization effect of date seed improved the textural properties of knuckle part meat and have potential for tenderization purpose in food industry.

scholarly journals Microbiology and atmospheric processes: chemical interactions of primary biological aerosols

2008 ◽  
Vol 5 (4) ◽  
pp. 1073-1084 ◽  
Author(s):  
L. Deguillaume ◽  
M. Leriche ◽  
P. Amato ◽  
P. A. Ariya ◽  
A.-M. Delort ◽  
...  
Keyword(s):  
Metabolic Activity ◽  
Atmospheric Chemistry ◽  
Ph Value ◽  
Chemical Constituents ◽  
Fungal Spores ◽  
Chemical Properties ◽  
Nutrient Concentrations ◽  
Chemical Interactions ◽  
Biological Aerosols ◽  
Micro Organisms

Abstract. This paper discusses the influence of primary biological aerosols (PBA) on atmospheric chemistry and vice versa through microbiological and chemical properties and processes. Several studies have shown that PBA represent a significant fraction of air particulate matter and hence affect the microstructure and water uptake of aerosol particles. Moreover, airborne micro-organisms, namely fungal spores and bacteria, can transform chemical constituents of the atmosphere by metabolic activity. Recent studies have emphasized the viability of bacteria and metabolic degradation of organic substances in cloud water. On the other hand, the viability and metabolic activity of airborne micro-organisms depend strongly on physical and chemical atmospheric parameters such as temperature, pressure, radiation, pH value and nutrient concentrations. In spite of recent advances, however, our knowledge of the microbiological and chemical interactions of PBA in the atmosphere is rather limited. Further targeted investigations combining laboratory experiments, field measurements, and modelling studies will be required to characterize the chemical feedbacks, microbiological activities at the air/snow/water interface supplied to the atmosphere.

scholarly journals Pollution Scenario due to Discharge of Effluent from Agrochemicals and Pesticides Manufacturing Industries of Dombivali Industrial Belt of Mumbai, India

2013 ◽  
Vol 22 ◽  
pp. 8-15
Author(s):  
P.U. Singare ◽  
S.S. Dhabarde
Keyword(s):  
Heavy Metals ◽  
Ph Value ◽  
Winter Season ◽  
Chemical Properties ◽  
Total Solid ◽  
Average Concentration ◽  
Summer Season ◽  
Manufacturing Industries ◽  
Toxic Heavy Metals ◽  
Physico Chemical

The paper deals with monitoring of pollution arising due to agrochemicals and pesticides manufacturing industries located along the Dombivali industrial belt of Mumbai, India. The study was carried for the period of one year from June, 2012 to May, 2013 to study the level of toxic heavy metals and the physico-chemical properties of waste water effluents discharged from the above industries. The average concentration of Cu, Ni, Cr, Pb and Zn was found to be maximum of 29.86, 0.90, 1.16 and 1.19 ppm respectively in summer season, while average Fe concentration was maximum of 51.10 ppm in winter season. The average pH value of the effluent was found to be maximum of 12.95 in summer season, while average conductivity value was maximum of 21085 µmhos/cm in rainy season. The majority of physco-chemical parameters like alkalinity, hardness, salinity, chloride, cyanide, phosphate, total solid, BOD and COD content were found to be maximum in summer season having the average values of 1918, 186, 4, 11.20, 0.07, 81, 6391, 685 and 2556 ppm respectively. The average DO content was found to be low of 4.5 ppm in winter season. It was observed that the concentration level of majority of the toxic heavy metals and physico-chemical properties were above the tolerable limit set for inland surface water. The results of present study indicates that the existing situation if mishandled can cause irreparable ecological harm in the long term well masked by short term economic prosperity due to extensive industrial growth

scholarly journals KARAKTERISTIK KIMIA TEPUNG SILASE LIMBAH IKAN TUNA (Thunnus sp.) DENGAN PENAMBAHAN TEPUNG JAGUNG

2020 ◽  
Vol 3 (1) ◽  
pp. 74
Author(s):  
Safitra Safitra ◽  
Asnani Asnani ◽  
Sri Rejeki
Keyword(s):  
Analysis Of Variance ◽  
Chemical Characteristics ◽  
Duncan Multiple Range Test ◽  
Corn Flour ◽  
Anova Analysis ◽  
Tuna Fish ◽  
Fish Waste ◽  
Chemical Test ◽  
Randomized Design ◽  
Range Test

Chemical characteristics of Silage Flour from Tuna Fish Waste (Thunnus sp.) with cornflour additionABSTRACT         The purpose of this study was to determine the chemical characteristics and the effect of the addition of cornflour to tuna waste silage flour.  This study used a Completely Randomized Design (CRD) consisting of four treatments, namely TS1 (5% addition to corn flour), TS2 (10% adding corn flour), TS3 (15% adding corn flour), TS4 (20% adding cornflour)  ) and repeat three times.  Data from observations were analyzed using ANOVA (Analysis of Variance) at a level of 95%, if there is a real difference (P> 0.05) then a further test was performed with a DMRT (Duncan Multiple Range Test) tests at a 95% level.  The results showed that the effect of adding cornflour to fish waste silage flour had a significant effect on the chemical content test value.  The results of the chemical test of the silage flour show water content between 10.4% -8.4%, ash content of 24.2% -7.9%, protein content of 47.5% -43.3%, and fat content of 4.6  % -2.1%. Keywords: Silage flour, tuna waste (Thunnus sp.), Cornflour and proximate composition.ABSTRAKTujuan penelitian ini adalah untuk mengetahui karakteristik kimia  dan pengaruh penambahan tepung jagung pada tepung silase limbah ikan tuna. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari empat perlakuan yaitu perlakuan TS1 (5% penambahan tepung Jagung), TS2 (10% penambahan tepung jagung), TS3   (15% penambahan tepung jagung), TS4 (20% penambahan tepung jagung) dan ulangan sebanyak tiga kali. Data hasil pengamatan dianalisa menggunakan ANOVA (Analysis of Variance) pada taraf  95%, apabila terdapat beda nyata (P>0,05) maka dilakukan uji lanjut dengan uji DMRT (Duncan Multiple Range Test) pada taraf nyata 95%. Hasil penelitian yang diperoleh menunjukkan bahwa pengaruh penambahan tepung jagung pada tepung silase limbah ikan memberikan pengaruh nyata terhadap nilai uji kandungan kimia. Hasil uji kandungan kimia tepung silase menunjukkan kadar air antara 10,4%-8,4%, kadar abu 24,2%-7,9%, kadar protein 47,5%-43,3%, dan kadar lemak 4,6%-2,1%.Kata kunci: Tepung silase, limbah ikan tuna (Thunnus sp.), tepung jagung serta komposisi proksimat

scholarly journals PASSAGE OF WHEAT FIRE IMPACT ON SOIL PROPERTIES AND ENVIRONMENT IN KURDISTAN REGION

2021 ◽  
Vol 52 (2) ◽  
pp. 461-470
Author(s):  
Tariq & et al.
Keyword(s):  
Soil Properties ◽  
Ph Value ◽  
Fire Severity ◽  
Chemical Properties ◽  
Field Capacity ◽  
Infiltration Rate ◽  
Germination Percentage ◽  
Biological Properties ◽  
Surface Burn ◽  
Effect Of Surface

The study was conducted to examine the effect of surface burn severity (Moderate, Severe and Unburned) of wheat straw on soil properties. The results showed statistical differences in some soil physical, chemical and biological properties. Bulk density and field capacity increased statistically by the severity of fire; however, porosity and infiltration rate were statistically lower in sever burned plot when compared to unburned plot. The chemical properties, soil organic matter (SOM), P, Ca, S, Cl, K, Mo, Fe and As were not affected by the fire. The pH value was increased slightly by increasing the fire severity, while, EC was decreased when compared with the unburned plot. It was found a statistical reduction in the number of bacterial and fungal cells per gram soil in the burned plots. A moderate and severe fire reduced seed germination percentage significantly. This finding suggests that fire severity may destruct the biological, physical and some of the chemical properties of the soil, and this may impact negatively on plant growth in the next growing season.

scholarly journals Pemanfaatan Limbah Padat Sari Apel sebagai Bahan Baku Cuka Apel Menggunakan Metode Backslop

2019 ◽  
Vol 2 (1) ◽  
pp. 136
Author(s):  
Alvianty Novitasari ◽  
Warkoyo Warkoyo ◽  
Sri Winarsih
Keyword(s):  
Acetic Acid ◽  
Phase Ii ◽  
Fermentation Process ◽  
Ph Value ◽  
Raw Material ◽  
Soluble Solids ◽  
Acetobacter Aceti ◽  
Alcohol Content ◽  
Apple Cider ◽  
Factor I

Solid wasted of apple cider containing a lot of compounds such as carbohydrates, glucose, malic acid, and flavonoids. The purpose of this research is to utilize the solid wasted of apple cider as the raw material of apple vinegar. The fermentation process of making apple vinegar in this research using the backstop method. This research consists of 2 steps of the fermentation process. The first step of fermentation using yeast to transform sugar into alcohol. Second step fermentation is a continuance of first step fermentation with the addition of apple vinegar backstop culture which contain Acetobacter aceti with density 4 x 107cfu / ml to transform alcohol to acetic acid. This research uses simple and factorial Randomized Block Design (RBD). Fermentation phase I using simple RBD with the proportion of apple raw material (solid wasted of apple cider: apple) 100% : 0%; 75%: 25%; 50%: 50%; 25%: 75% as factor I. Fermentation phase II using factorial RBD with the combination of factor I and the addition of apple vinegar backstop with concentration 5%, 10%, and 15% as factor II. The results showed that during the first step fermentation process the raw material proportion of apple (solid wasted of apple cider: apple) affected total soluble solids, pH value, and alcohol content. Fermentation phase II showed an interaction between the proportion of the raw material of apple (apple cider waste: apple) and the addition of backstop apple vinegar concentration to total dissolved solids, alcohol content, acetic acid, except pH value. The best results showed treatment with apple material proportion (25% solid wasted of apple cider: 75% apple) and addition of apple vinegar backstop concentration 15 % produce 4.6 g / 100ml acetic acid, 4% soluble solids total, pH value of 3.4 and alcohol residue of 0% (v/v), with colorful organoleptic results quite appealing, the scent is sufficient, and preferences are favored by the panelists.

scholarly journals Evaluation of fermentation quality of brewers' grains ensiled in combination with malt sprouts and chemical conservation additive

2008 ◽  
Vol 56 (5) ◽  
pp. 227-234
Author(s):  
Ivo Vyskočil ◽  
Petr Doležal ◽  
Jan Doležal ◽  
Václav Pyrochta ◽  
Libor Kalhotka
Keyword(s):  
Propionic Acid ◽  
Acid Production ◽  
Fermentation Process ◽  
Ph Value ◽  
Lactic Acid Production ◽  
Acetic Acid Production ◽  
Chemical Additive ◽  
Fermentation Quality ◽  
Malt Sprout

The aim of the work was to evaluate the effect of addition of humidity absorbent (malt sprouts) and chemical conservation additive on fermentation process quality of brewer grains’ silage. Chemical conservation additive was based on formic acid, propionic acid, benzoic acid and ammonium formate content. In a model experiment the fresh brewer grains were used. A dry matter (DM) content of brewer grains was 187.4 g / kg. Six treatments with three repetitions per treatment were prepared. The treatments A1, A2 and A3 were not supplied by humidity absorbent. Treatment A1 was a control treatment without any additive. The treatments A2 and A3 were supplied by chemical conservation additive in a dose of 3 L per tonne and 6 L per tonne, respectively. The treatments B1, B2 and B3 were supplied by malt sprouts to reach DM content of conserved matter on level 320–350 g / kg. Moreover the treatments B2 and B3 were supplied by chemical additive with its dose 3 and 6 L per tonne. Model silages were evaluated after 8 months of conservation at average laboratory temperature 26–28  °C, from each treatment were the final laboratory samples taken and analyzed. During conservation of treatments B1, B2 and B3 were no drain recognized. From A1 treatment drained 1300 ml of waste fluid that is 145 L per tonne of conserved matter. That was significant (P < 0.01) the malt sprouts addition support the lactic acid production and eliminate acetic acid production. There was no propionic acid or butyric acid detected in silages with malt sprouts event in these silages were analyzed higher (P < 0.01) concentration of ammoniac. Chemical additive supplementation improved (P < 0.01) the pH value and water leach acidity. The results show the malt sprout addition eliminates waste fluid drain and improves fermentation process. The higher concentration of chemical additive (6 l / t) inhibited the fermentation process in our model experiment.

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