scholarly journals Performance Analysis and Quality Evaluation of Wheat Storage in Horizontal Silo Bags

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Mohamed M. El-Kholy ◽  
Reham M. Kamel
Keyword(s):  
Moisture Content ◽  
Protein Content ◽  
Storage Period ◽  
Bulk Temperature ◽  
Microbial Count ◽  
Falling Number ◽  
Grain Moisture ◽  
Storage Methods ◽  
Grain Bulk ◽  
1000 Grain Weight

Wheat still suffers from the problem of traditional storage methods, limited storage capacity, and a high percentage of losses in terms of quantity and quality. Hermetic silo bags are economical and alternative technique to the traditional storage methods. Ten horizontal plastic silos with the capacity of 200 tons/silo were tested and evaluated for eight months of wheat storage. The evaluations included grain bulk temperature, CO2 concentration, fungal and microbial count, insect count, grain moisture content, 1000-grain weight, falling number, and protein content. The results showed that the stored wheat quality was maintained without any significant difference during the storage period in terms of 1000-grain weight, grain moisture content, and falling number, while there were slight changes in protein content and kernel hardness with a decrease of 5.5% and 4.6% at the end of the storage period. There were no statistically significant differences at the sampling location along the length of the storage silos, which confirms the homogeneity of the internal conditions of the examined silo. The grain bulk temperature inside the silos was always lower than the surrounding ambient air temperature. The higher concentration of carbon dioxide inside the silos during the storage period led to a decrease in fungal and microbial count and the presence of dead insects at the end of the storage period.

scholarly journals THE STUDY OF QUALITY INDICATORS AND FRACTIONAL COMPOSITION OF WHEAT GRAIN PROTEIN OF SOUTHERN REGIONS OF UKRAINE

2021 ◽  
Vol 20 (4) ◽  
pp. 4-10
Author(s):  
A. Penaki ◽  
A. Borta
Keyword(s):  
Moisture Content ◽  
Protein Content ◽  
Bulk Density ◽  
Quality Indicators ◽  
Protein Structures ◽  
Protein Fractions ◽  
Falling Number ◽  
Wheat Grain ◽  
Molecular Weights

The results of studies of the quality of food and non-food grain of wheat from the southern regions of Ukraine in 2016 harvest are presented. The indicators of the quality of wheat grain were determined, the uniformity of their distribution in different classes of wheat was assessed, the content of protein fractions of the gluten complex and the molecular weights of individual protein structures were determined. It was found that the studied 13 samples of wheat grain had the following quality indicators: moisture content 9.4 ... 13.5%, bulk density 731 ... 814 g/l, protein content 10.1 ... 13.2%, gluten content 16.4 ... 25.6%, gluten quality 50 ... 110 units of the IDK device, falling number 311 ... 493 s, grain admixture 1.2 ... 10.5%, grains damaged by a wheat bug, 0.1 ... 10.1%. It was noted that the bulk density of all samples of wheat of 2 ... 6 classes exceeded the standard values in each class. In terms of protein content, 2 from 3 samples of class 5 wheat and 1 from 2 samples of 6 class exceeded the standard value of class 3 wheat (≥11.0%). The same was observed for these samples and for the gluten content (≥18%). Almost all grain samples, except for 2 samples of the 5th class and 2 samples of the 6th class, met the requirements of wheat of the 2nd class (45 ... 100 units device VDK). The falling number of all samples was high and significantly exceeded the normalized value (180 s), even for class 2 wheat. It was found that the uniformity of the distribution of individual quality indicators in different classes of wheat grain by the coefficient of variation is not the same. Such indicators of grain quality as moisture content, bulk density and protein content in different samples of the south of Ukraine in 2016 harvest fluctuated weakly (V≤10%), in terms of the amount of gluten and the falling number fluctuations were average (10% ≤V≤20%). Fluctuations in the content of grain impurities and grains damaged by the wheat bug are big (V≥20%). For the last indicator, fluctuations relative to the average are very large and exceed 120 %. This indicates that in different areas where wheat was grown, the infestation by the wheat bug was very different. It was shown that regardless of the total amount of protein determined by the Infratec FOSS express analyzer, four protein fractions of the gluten complex (albumins, globulins, gliadins and glutenins) are present in all grain classes, and the molecular weights of the protein structures of the main fractions are within small limits, which are in kDa - for albumins and globulins 20...30, gliadins 27.. 100 and glutenins 30...35. It was noted that in the varietal wheat "Chernobrova" albumins and globulins have a slightly higher molecular weight (30...40 kDa) than in non-varietal wheat.

scholarly journals Studies on thermal processing of tuna - A comparative study in tin and tin-free steel cans

2011 ◽  
Vol 11 (48) ◽  
pp. 5539-5560
Author(s):  
K. J Maheswara ◽  
◽  
C. V Raju ◽  
J Naik ◽  
R. M Prabhu ◽  
...  
Keyword(s):  
Moisture Content ◽  
Protein Content ◽  
Thermal Processing ◽  
Enzymatic Reaction ◽  
Storage Period ◽  
Tuna Fish ◽  
Canned Tuna ◽  
Significant Difference ◽  
Heat Penetration

Tin -free steel can is an ideal alternative to open top sanitary t in cans (OTS) for thermal processing of little tuna ( Ethynnus affinis ) in curry used as filling media. Effect of heat penetration on physical, biochemical and sensory characteristics of canned tuna product were studied. The chemical analysis of raw tuna fish showed a protein content of 24.20 % and a lipid content of 1.37%. Comparatively, tuna used in the present study is more suitable for canning due to the presence of more protein and less fat in its flesh. Precooking is an important step in general canning process as it serves to reduce moisture content along with inhibiting enzymatic reaction, decreasing microbial load and cleansing the meat. The protein content of precooked tuna was 2.92% more than raw tuna due to relative concentration of moisture content decreases due to precooking. The percentage of yield of light meat and dark meat was 36.58% and 10.18% from whole cooked tuna and the same for dark and white meat was 28.40%. Tuna in curry packed in two metal container s subjected to thermal processing at 115 0 C for 70 minutes . The F 0 (slowest heating point) values for canned tuna in curry packed in TFS and Tin cans obtained were 10.13 and 10.23 minutes and cook values were 145.5 minutes & 153.6 minutes respectively . During the storage period, the total volatile base nitrogen, trimethyleamine nitrogen, free fatty acid values were found to increase, while thiobarbituric acid value decreased and pH was slightly acidic . There was no significant difference (p<0.05) in appearance, colour, odour, taste, flavour, texture, overall quality of the raw tuna and final products. However, both canned products were acceptable even after storage of 5 months at ambient temperature and also , the product remained commercially sterile. It was concluded that according to quality of the product and heat penetration studies, tin - free steel container can be used as alternative to the open top sanitary tin cans for canning tuna meat.

scholarly journals Dehulling capacity and storability of naked oat

2008 ◽  
Vol 13 (1-2) ◽  
pp. 198 ◽  
Author(s):  
A-M. KIRKKARI ◽  
P. PELTONEN-SAINIO ◽  
P. LEHTINEN
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Moisture Content ◽  
Protein Content ◽  
Acid Composition ◽  
Germination Capacity ◽  
Naked Oat ◽  
Hull Content ◽  
Grain Moisture ◽  
Environment Control

Harvested naked oat is not completely hulless. Hull content of various cultivars ranged between one and six percent. Genotype and environment control expression of nakedness. Using different threshing settings at different grain moisture contents, it was investigated whether grain moisture at threshing and combine harvester settings affected hull content and its relationship to germination capacity. Naked groats were stored at room temperature and analysed for protein content and fatty acid composition to determine storability. Grain moisture content at threshing had contrary effects on hull content and degree of hull retention in different years. Small grains tended to retain hulls more tightly during threshing. Grain filling capacity appears to be the dominant factor determining degree of nakedness rather than stage of maturity. The postulated protective nature of hulls was confirmed only for cultivar Lisbeth. Highly viable samples of grain of cv. Lisbeth, threshed at normal settings, contained a higher percentage of hulls than those with low germination capacity, while for cv. Bullion, a protective effect of the hulls was not evident. Grain moisture content at threshing did not affect protein content of naked cultivars, but some differences in fatty acid composition were recorded. Changes in lipid composition and volatile oxidation products during storage of groats were relatively moderate, indicating no major problems related to storage when naked oat was dried well.;

scholarly journals THE CONTENT OF SOME TECHNOLOGICAL QUALITY COMPONENTS AND MYCOTOXINS IN GRAIN OF FOUR CULTIVARS OF SPRING WHEAT DEPENDING ON GRAIN STORAGE TIME AFTER HARVEST

2019 ◽  
Vol 56 (03) ◽  
pp. 549-556
Author(s):  
Cezary A. Kwiatkowski
Keyword(s):  
Moisture Content ◽  
Protein Content ◽  
Spring Wheat ◽  
Storage Time ◽  
Quality Characteristics ◽  
Grain Storage ◽  
Grain Hardness ◽  
Hardness Index ◽  
Grain Moisture ◽  
Technological Quality

The aim of this study was to determine the effect of three grain storage times and the cultivar factor on some parameters used in commodity analysis of spring wheat grains. A field experiment was conducted in Czeslawice (Poland) using the split-plot method in 3 replicates in 27 m2 plots. This paper presents the effect of storage time (3, 15, 27 months) of grain of four spring wheat cultivars (‘Korynta’, ‘Monsun’, ‘Tybalt’, ‘Zadra’) on some technological quality characteristics. After harvest, the grains were dried to the moisture content 14% and subsequently stockpiled in a warehouse. It was observed that grains can be stored for a period of even two years with no risk if all the grain storage rules are followed. Short- and long-term grain storage (3-27 months) resulted in satisfactory values of the grain quality characteristics like grain moisture, protein content, and grain hardness index. The storage of grain did not affect negatively grain contamination with mycotoxins. No significant differences were observed in the response of the cultivars studied (grain moisture content, protein content, grain hardness index) to grain storage time. Significant differences among the cultivars were observed in the grain hardness index after 3-month storage. It was also noted that the cultivars ‘Korynta’ and ‘Tybalt’ were characterized by lower susceptibility to contamination with mycotoxins than cvs. ‘Zadra’ and ‘Monsun’. The results obtained in this study are a good indicator for cereal producers who store grains for a period of even two years, thus becoming independent of changing price conditions in the cereals market and the changing demand for and supply of animal feed and bread grain across other countries.

scholarly journals Studies on physico-chemical parameters of biscuits using wheat, sorghum and groundnut blend flour

2020 ◽  
Vol 11 (2) ◽  
pp. 77-83
Author(s):  
Rohit Kumar Maurya ◽  
Devendra Kumar
Keyword(s):  
Moisture Content ◽  
Protein Content ◽  
Chemical Properties ◽  
Storage Period ◽  
Fat Content ◽  
Ash Content ◽  
Carbohydrate Content ◽  
Chemical Parameters ◽  
Sorghum Flour ◽  
Physico Chemical

Biscuits are feasible to provide complete enrichment and contain different amount of protein, fat, mineral, carbohydrate and calorific energy. Experiments were conducted to evaluate quality attributes of biscuits using wheat, sorghum and groundnut blend flour. Study was also conducted to see the effect of blend flours treatments on physico-chemical parameters. Flours blend were prepared with various combination of wheat, sorghum and groundnut as W80: S15: G05 (T1), W70: S20: G10 (T2) and W60: S25: G15 (T3). After preparation of biscuit physico-chemical properties viz., moisture content, fat content, ash content, protein content and carbohydrate content were evaluated just fresh and after 30, 60 and 90 days of storage period. The study revealed that the moisture content increased with the increase of storage period for all treatments. The value of moisture content 4.76 per cent was obtained maximum in the treatment T3 after 90 days of storage period. The ash content change with increase of storage period was slightly decreased in all treatments. The minimum ash content (0.88%) was found in the treatment T3 after 90 days storage period. The fat content of biscuits sample decreased with increase in storage period in case of all treatments. Data obtained for protein content after 30, 60, 90 days of storage indicated that in case of all samples, the value decreased for all treatments. Highest protein content (13.5%) was observed in treatment T3 for the fresh biscuits sample. Carbohydrate content was obtained minimum in T3 (64.27%) at 0 day (fresh) and maximum in T1 (66.48%) at 90 days. The average value was calculated for diameter and thickness as T1 (40 mm) and (0.9 mm), T2 (40 mm) and (0.9 mm), T3 (40 mm) and (0.8 mm), respectively. There were no changes in diameter and thickness in different treatment of biscuits because ingredients were same in all treatments. The result showed that spread ratio was observed as 44.44, 44.44 and 50 for treatments T1, T2 and T3, respectively. Fresh biscuit samples with wheat flour 70% + sorghum flour 20% + groundnut flour 10% (T2) rated highest score (7.8) than other treatments.

Modelling and Simulation Moisture Transfer in Wheat Stored in a Simulated Sealed Pit

2008 ◽  
Vol 4 (3) ◽  
Author(s):  
Mohamed A. Ismail ◽  
Michael P. Douglass ◽  
Brian C. Stenning
Keyword(s):  
Finite Difference ◽  
Moisture Content ◽  
Input Data ◽  
Moisture Transfer ◽  
Storage Period ◽  
Moisture Distribution ◽  
Wall Material ◽  
Moisture Contents ◽  
Grain Moisture ◽  
Grain Temperature

A mathematical model, coupled to another one which was used to calculate the conductive heat transfer, was developed to predict the change of moisture distribution with time in the radial and axial directions in a simulated sealed cylindrical pit storing wheat. The finite difference method was used in the model to calculate the diffusive moisture transfer. The model predicts the grain moisture contents in the pit during the storage period using input data of initial grain temperature, initial grain moisture content, storage time and number of spatial elements in both radial and axial directions. Other input data include the finite difference spatial increment in both directions, the finite time increment, temperatures of soil surrounding the pit and the physical properties of grain, pit wall material and surrounding soil. To validate the model, predicted moisture contents were compared with measured data for wheat of Apollo variety being stored in a simulated sealed pit for a period of 70 days. The wheat was stored in a cylindrical mild steel tank with 0.6 m in both diameter and height. The initial uniform grain temperature was 15 °C and the initial uniform grain moisture content was 12.45% (w.b.). Both measured and predicted moisture contents show that the major change in wheat moisture content took place during the first week of the storage and an establishment of steady state under the storage conditions of the pit is unattainable i.e. moisture diffusion is a very slow process. At the end of the storage period, the grain moisture contents were increased by an average of 1.62% (w.b.) and the grain temperatures were decreased by an average of 2.63°C at the top layer of the pit. For the bottom layer of the pit, the grain moisture contents were decreased by an average of 0.50% (w.b.) and the grain temperatures increased by an average of 7.04°C. The diffusive moisture transfer model predicted the grain moisture contents with a standard error of estimate between measured and predicted of 0.18 -0.75% and of 0.18-0.74% (w.b.) using Chung's equation and modified Henderson's equation, respectively. There was no difference between the two sorption equations (Chung's and modified Henderson's equations) used in predicting grain moisture contents.

Effects of Different Solar Drying Methods on Drying Time and Rice Grain Quality

2011 ◽  
Vol 7 (5) ◽  
Author(s):  
Pyseth Meas ◽  
Anthony H. J. Paterson ◽  
Donald J. Cleland ◽  
John E. Bronlund ◽  
A. John Mawson ◽  
...  
Keyword(s):  
Moisture Content ◽  
Grain Quality ◽  
Drying Methods ◽  
Rice Grain ◽  
Drying Time ◽  
Rice Farmers ◽  
Grain Moisture ◽  
Harvest Moisture ◽  
Grain Bulk ◽  
Air Circulation

Paddy rice was sun dried in Cambodia in 2004 using a range of methods practiced by local rice farmers. For each treatment in the experiment, a grain sample at about 22% moisture (typical harvest moisture content) was sun dried between 8 a.m. and 4 p.m. During experiments, the grain moisture content was measured at regular intervals. The grain varieties used, bed depths, stirring of the grain, bulk tempering after drying and the drying pads had significant effects on the drying time. Drying was faster when bed depth was reduced, regularly stirred but not shaded or covered and when the drying was carried out on a porous pad. Damage to the dried grain was reduced when the bed was thin, stirred and shaded and when the drying was slow on pads with less air circulation.

scholarly journals Influences of drying temperature and storage conditions for preserving the quality of maize postharvest on laboratory and field scales

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Paulo Carteri Coradi ◽  
Vanessa Maldaner ◽  
Éverton Lutz ◽  
Paulo Vinícius da Silva Daí ◽  
Paulo Eduardo Teodoro
Keyword(s):  
Grain Quality ◽  
Storage Systems ◽  
Storage Period ◽  
Storage Conditions ◽  
Drying Temperature ◽  
Grain Moisture ◽  
Storage Methods ◽  
Maize Grain ◽  
And Storage

AbstractDrying and storage methods are fundamental for maintaining the grain quality until processing. Therefore, the aim of this study was to evaluate the associations of the drying temperature with storage systems and conditions as a strategy for preserving the quality of maize grain postharvest on laboratory and field scales. An increase in temperature accelerated the reduction in grain moisture, but increased the deterioration. The wetting during the storage period reduced the grain quality. Hermetic and aerated storage systems maintained the chemical quality of the grains. The control with healthy and whole corn dried at 80 °C and stored in silos with natural aeration provided a satisfactory quality, equivalent to those of controlled drying and storage under airtight conditions and at low temperatures. Different conditions of drying and storage of corn on the laboratory and field scales were evaluated, which provides an appropriate management of these operations to maintain the grain quality.

scholarly journals PROCESSING EFFECT ON THE MICROBIAL AND PROXIMATE COMPOSITION OF KILISHI AT SOUTH EAST NIGERIA

2018 ◽  
Vol 6 (5) ◽  
pp. 340-345
Author(s):  
Peter Anyigor Okorie
Keyword(s):  
Moisture Content ◽  
Protein Content ◽  
Proximate Composition ◽  
Ash Content ◽  
Human Consumption ◽  
Processed Meat ◽  
Microbial Count ◽  
Raw Meat ◽  
Processing Effect ◽  
The Difference

The proximate and microbiological compositions of kilishi, a processed meat at Abakaliki, southeast of Nigeria was determined in this study. The moisture, protein, fat, and ash contents, including the microbial count of the raw meat and kilishi in the study area were investigated to ascertain the processing effect. The results show that kilishi has higher protein content, fat content and ash content relative to the raw meat with the difference of 17.04 %, 4.66 % and 1.94 %. The moisture content and microbial count of kilishi are lower compared to the raw meat with a difference of 62.00 % and 17.33 cfu/g. The analysis suggests that the kilishi sold at Abakaliki is safe for human consumption.

KARAKTERISTIK BROWNIES KUKUS TEPUNG JEWAWUT (Setarica italica) DAN TEPUNG MAIZENA DENGAN PENGARUH LAMA PROSES PENGUKUSAN

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Bernaulli Putri Mulyanto ◽  
Yustina Wuri Wulandari ◽  
Akhmad Mustofa
Keyword(s):  
Moisture Content ◽  
Protein Content ◽  
Ash Content ◽  
Total Sugar ◽  
Gluten Free ◽  
Corn Flour ◽  
Process Duration ◽  
Flour Protein ◽  
Randomized Design ◽  
Completely Randomized Design

      Brownies merupakan cake coklat yang terbuat dari tepung terigu, lemak, telur, gula pasir dan coklat. Metode pemasakan brownies ada dua yaitu pemanggangan dan pengukusan. Penelitian ini menggunakan tepung jewawut dan tepung maizena agar dihasilkan brownies kukus bebas gluten. Penelitian ini bertujuan untuk mengetahui formulasi tepung yang memiliki kadar protein tertinggi pada brownies dan untuk mengetahui lama pengukusan yang optimal sehingga menghasilkan brownies kukus tepung jewawut dan tepung jagung yang paling disukai. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan dua faktorial yaitu faktor pertama ratio tepung jewawut dan tepung jagung (50:50, 40:60 dan 30:70), sedangkan faktor kedua lama pengukusan (30 menit, 40 menit dan 50 menit). Hasil penelitian menunjukkan Brownies kukus tepung jewawut dan tepung jagung dengan ratio 50:50 dan lama pengukusan 50 menit merupakan ratio yang terbaik karena memiliki kadar protein paling tinggi yaitu 5.828%.  Pada perlakuan ini menghasilkan 19.967% kadar air, 1.585% kadar abu, 1.786% gula total, serta uji organoleptik terhadap warna 3.590 (coklat gelap), tekstur 3.340 (lembut), flavor jewawut 2.855 (sedikit terasa) dan kesukaan keseluruhan 3.285 (disukai). Kata kunci : Brownies, tepung jewawut, tepung jagung, kadar protein.  ABSTRACT      Brownies is chocolate cakes made from flour, fat, eggs, sugar and chocolate. There are two methods of cooking brownies namely roasting and steaming. This study uses millet flour and maizena flour to produced gluten free steamed brownies. This study aims to determine the best of flour formulated which has highest protein content in steamed brownies and to knew the optimal steaming time that produced the most favored  of  steamed brownies millet flour and  corn flour. This study used a completely randomized design (CRD) with two factorials, the first factor is ratio of millet flour and corn flour (50:50, 40:60 and 30:70), while the second factor was the duration of steaming process (30, 40 and 50 minutes). The result of the study showed steamed flour of millet flour and corn flour with ratio of 50:50 and with steamed process duration 50 minutes is the best ratio because it had the highest protein content of 5.828%.  In this treatment yielded 19.97% moisture content, 1.585% ash content, 1.786% total sugar and organoleptic test is 3.590 (dark chocolate) colors, 3.340 (soft) texture, 2.855 (slightly felt) millet flavors and 3.285 (preferred) overall preferences. Keywords :  Brownies, millet flour, corn flour, protein content

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