scholarly journals Hermetic Storage Technology for Food Grains: New Beginning of Organic and Safe Storage for Farmers and Consumers: A Review

2022 ◽  
Author(s):  
Vinod T. Atkari ◽  
Krantidip R. Pawar ◽  
Sujit C. Patil
Keyword(s):  
Moisture Content ◽  
Carbon Dioxide Concentration ◽  
Humid Climate ◽  
Hermetic Storage ◽  
Storage Technology ◽  
Food Grains ◽  
Plastic Bags ◽  
New Beginning ◽  
Favorable Conditions ◽  
Storage Structures

The moisture content of grains, oxygen and carbon dioxide concentration in storage environment affects the storage life of food grains. The moisture content affects on storability of food grains severely, hence the storage structures must be provided with sufficient protection from moisture exchange between grain and atmosphere. The insect and pests grows very fast in presence of oxygen and moisture in the storage environment. The humid climate provides favorable conditions to moulds and insects to grow in most of the food grains and oilseeds. The grains exposed to these favorable environment further not useful for human consumptions. Many harmful chemicals like aflatoxins are formed in oilseeds and cereals. The emerging hermatic storage is highly effective technology to prevent the spoilage of grains without use of any harmful fumigants and chemicals, hence it is popularly known as organic storage technology. In this technology the flow of oxygen and water from external environment is fully controlled by impermeable, triple layer hermatic plastic bags.

scholarly journals Study on Grain Storage Facilities as Food Security Measure in Flood Prone Areas of Bangladesh

2014 ◽  
Vol 18 (2) ◽  
pp. 223-233
Author(s):  
MS Alam ◽  
MA Ashraf ◽  
MIA Mia ◽  
MZ Abedin
Keyword(s):  
Storage System ◽  
Grain Storage ◽  
Storage Structure ◽  
Advantages And Disadvantages ◽  
Food Grains ◽  
Plastic Bags ◽  
Steel Drum ◽  
Storage Structures ◽  
Flood Prone Areas ◽  
Storage Facilities

The present study aimed at obtaining the existing grain storage facilities - their problems and prospects at farmers, commercial, common and co-operative levels on some selected flood prone areas of Bangladesh. The study was conducted at Belkuchi upazila under Sirajgonj district. A total of randomly selected forty farmers and ten traders were surveyed from four villages under four different unions through structured questionnaire. Farmers and traders were classified as small, medium and large on the basis of their total land ownership and annual income status. The farmers used traditional storage structures such as Dole, berh, Motka, Jala, steel drum, gunny and plastic bags and Gola. On the other hand, the traders used gunny and plastic bags and privately owned godowns for storing food grains for short time basis. Average production, consumption, sale, farm use, labour wage, storage volume, cost, durability and losses of different storage structures for major grain crops like paddy, wheat and mustard were identified by farmers and traders category. Considering the capital cost, expected life and storage loss steel drum, gunny and plastic bags and Motka/Jala were found more economical for the farmers. The advantages and disadvantages of farmers, commercial, common and co-operative level storage structures were also identified. As the study area was a flood prone one, average 60% farmers were affected and average 8% stored grains were damaged by the flood of 2007. A total of 73% farmers and traders expressed their interest on co-operative storage system at the time of flood to store food grains with paying cost as they have no alternative storage facilities other than the proposed safely constructed co-operative storage structures. On the basis of the opinion of farmers and traders, the suitable location and type of storage structure were also proposed. A layout design and the cost of an operational storage structure for storing 60 metric tonnes of paddy and the possible management of the co-operative storage system were also proposed.DOI: http://dx.doi.org/10.3329/pa.v18i2.18244 Progress. Agric. 18(2): 223 - 233, 2007 

scholarly journals Traditional rice storage facilities and options for safe storage: A study in some selected flood-prone areas under Bhola district

2016 ◽  
Vol 13 (1) ◽  
pp. 125-130 ◽  
Author(s):  
MK Hasan ◽  
MZ Abedin ◽  
T Islam ◽  
MZ Rahman
Keyword(s):  
Storage System ◽  
Sampling Technique ◽  
Safe Storage ◽  
Cooperative Society ◽  
Food Grains ◽  
Plastic Bags ◽  
Storage Structures ◽  
And Storage ◽  
Selection Of ◽  
Storage Facilities

The study aimed at identifying the existing rice storage facilities, problems and prospects at farmer’s level in some selected five unions in two flood-prone upazillas under Bhola district of Bangladesh. The farmer’s suggested policy options for safe storage of rice are also discussed. The selection of Upazilas and villages were done purposively whereas the sample households were selected randomly using stratified random sampling technique with arbitrary allocation. The farmers were classified as small, medium and large based their land ownership. Data on the average rice production, consumption, storage volume and costs of storage and losses of rice in different storage structures/containers from selected 50 farmers of study areas were collected through pre-tested questionnaire. The farmers generally used traditional storage structures such as Dole, Berh, Motka, Jala, Gola, Plastic drum and Gunny/Plastic bags for storing rice. Plastic drum, Gunny and Plastic bags and Motka/Jala were found more economical for the farmers considering the capital cost, expected life and storage loss. Over 90% of the farmers’ felt the need for training on safe storage and over 80% of the small and medium farmers were interested in getting government help through loans, grants, etc. About 60% of the farmers expressed their interest on cooperative storage system to store and protect their food grains during the time of floods. Farmers opined to construct storage structures at an easily accessible place within their village or union under common or cooperative storage systems. The proposed storage system, on implementation, could be managed or overseen by a committee elected/selected by the cooperative society members.J. Bangladesh Agril. Univ. 13(1): 125-130, June 2015

scholarly journals Effectiveness of Improved Hermetic Storage Structures Against Maize Storage Insect Pests Sitophilus zeamais and Prostephanus truncatus

2018 ◽  
Vol 10 (8) ◽  
pp. 100
Author(s):  
Tadele Tefera ◽  
Addis Teshome ◽  
Charles Singano
Keyword(s):  
Weight Loss ◽  
Insect Pests ◽  
Sitophilus Zeamais ◽  
Research Station ◽  
Prostephanus Truncatus ◽  
Storage Pests ◽  
Hermetic Storage ◽  
Percentage Weight ◽  
Small Holder Farmers ◽  
Storage Structures

A study was conducted for 12 months to evaluate the effectiveness of two improved hermetic storage structures against two maize storage pests Sitophilus zeamais and Prostephanus truncatus at Liwufu Research Station, Malawi. The storages were metal silo and hermetic bag; Actellic super dust was included as a control. The treatments (storages) were replicated four times under natural and artificial infestations. Grain stored in metal silo had the lowest mean percentage weight loss, 1.04% to 1.25%, 12 months after storage followed by hermetic bag, 2.46% to 6.64%. Grain treated with Actellic super had the highest weight loss, 4.86% to 18.72%. The study showed that hermetic storage structures can be promoted as effective alternative non-chemical methods of grain storage for small holder farmers in Malawi.

scholarly journals Prevalence of Insects in Traditionally Stored Rice at Farmhouses in Bangladesh

2021 ◽  
pp. 34-44
Keyword(s):  
Storage Time ◽  
Insect Pests ◽  
Sitophilus Oryzae ◽  
Small Farmers ◽  
Plastic Bags ◽  
Rice Moth ◽  
Plastic Bag ◽  
Meal Worm ◽  
Storage Structures ◽  
Control Insect

A survey was conducted to investigate rice storage practices at the farmer’s level and the prevalence of insects’ status through a pretested questionnaire in Mymensingh and Jashore districts, Bangladesh. For seed purposes, large, medium, and small farmers store about 40, 10, and 5 kg, respectively in the Aman season for 7 months whereas in the Boro season large and medium farmers keep about 80 and 20 kg for 5 months. Average storage time was the highest (7 months) for Boro and Aman rice by large and small farmers, respectively for consumption. Eleven storage items namely, Dole, Motka, Tin, Plastic Drum, Gunny Bag, Bamboo Gola, Dhari, Bamboo Auri, Berh, Steel Drum, and Plastic Bag were found. About 57 and 74% of farmers stored rice, among them 47 and 58% used traditional Dole in Jashore and Mymensingh, respectively. Tin and Berh (1%) were the least used storage structures. About 11 and 17%; 3 and 4% of farmers used neem leaf and chemicals especially phostoxin in storage as an insect repellent in these areas, respectively. The use of Plastic Bags increased sharply due to lightweight, availability, and low price, whereas Bamboo Gola, Berh, Motka users decreased remarkably. Relative abundance of the insect species was: Rice Moth Sitotroga cerealla, Rice Weevil Sitophilus oryzae, Red Flour Beetle Tribolium castoreum, and Lesser Meal Worm Alphitobious diaperinus. Maximum insect infestation was found in stored paddy in Dole followed by Motka, and Plastic Bag; and the least amount was observed in Plastic Drum in both regions. Three fourth of the respondents took no measures to control insect pests in stored rice.

Effects of Moisture Content and Compaction Pressure on Bulk Density of Rye

2021 ◽  
Vol 37 (3) ◽  
pp. 491-494
Author(s):  
Jonathan Chiputula ◽  
Emmanuel Ajayi ◽  
Ray Bucklin ◽  
Ann R Blount
Keyword(s):  
Moisture Content ◽  
Bulk Density ◽  
Compaction Pressure ◽  
Applied Pressure ◽  
Grain Storage ◽  
List Type ◽  
Moisture Contents ◽  
Storage Structures ◽  
Square Box

HighlightsRye grain compaction was measured for three different moisture contents (8%, 12%, and 16% wet basis) at five different compaction pressures (7, 14, 34, and 55 kPa)Bulk densities were found to be statistically significantly dependent (p < 0.0001) on both the moisture content and applied pressure.Compacted bulk densities increased with increasing applied pressure for all moisture contents.Abstract. Bulk density of agricultural grains is needed to determine the quantity of grain in storage structures and to calculate grain pressures. The objective of this study was to investigate the effects of moisture content and applied pressure on bulk density of rye grain at moisture contents and pressures typical of those seen in storage structures. Rye compaction was measured for three moisture contents (8%, 12%, and 16% wet basis) at four compaction pressures (7, 14, 34, and 55 kPa) using a square box (based on the design used by Thompson and Ross, 1983). Data from the compaction tests were used to calculate the bulk densities for the three moisture contents and four compaction pressures. The bulk densities were found to be significantly dependent (p <0.0001) both on moisture contents and the pressure applied. Bulk densities varied with increasing moisture content as has been observed in similar studies for rye and other agricultural grains such as wheat and soybeans. These results provide guidance for estimating bulk density of rye in bins and other storage structures. Keywords: Grain compaction, Grain storage, Kernel rearrangement, Kernel elasticity.

Effectiveness of hermetic maize grain storage technology in limiting aflatoxin exposure in women and children from smallholder farming areas

2019 ◽  
Vol 12 (3) ◽  
pp. 233-243 ◽  
Author(s):  
M.P. Dembedza ◽  
C. Chidewe ◽  
M.A. Benhura ◽  
B.M. Mvumi ◽  
L.R. Manema ◽  
...  
Keyword(s):  
Geometric Mean ◽  
Urine Samples ◽  
Grain Storage ◽  
Smallholder Farming ◽  
Hermetic Storage ◽  
Storage Season ◽  
Storage Technology ◽  
Significant Difference ◽  
Women And Children ◽  
Exposure Levels

The longitudinal study assessed the effectiveness of hermetic storage technology in limiting aflatoxin exposure among women aged 15-45 years and children under five years of age from households in selected smallholder farming areas of Zimbabwe. Exposure levels were determined by measuring aflatoxin M1 (AFM1) in urine samples from women and children every three months during the 2015/2016 storage season for nine months. After extraction and immunoaffinity column clean up, AFM1 was determined by high performance liquid chromatography. Generally, the proportion of AFM1 positive urine samples from women increased throughout the grain storage season from 5.4% (n=23) (geometric mean (GM) 1.62 μg/l) at harvest to 75% (n=315) (GM 48.35 μg/l) nine months later (range <limit of quantification (LOQ)-217.29 μg/l). In urine samples from children, AFM1 positive samples increased from 2.2% (n=4) (GM 0.78 μg/l) at harvest to 72.5% (n=98) (GM 22.81 μg/l) nine months later (range <LOQ- 135.00 μg/l). Urinary AFM1 was significantly higher in samples from participants using conventional storage (GM 62.28 μg/l; range <LOQ-217.29 μg/l) compared with samples from participants using hermetic technology (GM 31.95 μg/l; range <LOQ-157.71 μg/l. There was no significant difference in AFM1 concentrations in urine samples from participants consuming grain from metal silos and hermetic bags (P>0.05) hence the two technologies are equally effective in limiting exposure to aflatoxins in humans. The study concluded that aflatoxin exposure levels among women and children from small-holder farming areas increase throughout the postharvest season and the use of hermetic storage technology resulted in up to 33.2% decrease in frequency of detection and 48.7% decrease in levels of AFM1 compared to conventional storage technologies. Thus hermetic grain storage can be an effective technology recommended for limiting aflatoxin exposure in smallholder farming populations.

scholarly journals Drying and storage of Eugenia involucrata DC. seeds

2003 ◽  
Vol 60 (3) ◽  
pp. 471-475 ◽  
Author(s):  
Angela Maria Maluf ◽  
Denise Augusta Camargo Bilia ◽  
Claudio José Barbedo
Keyword(s):  
Moisture Content ◽  
Water Content ◽  
Cold Storage ◽  
Native Species ◽  
Plastic Bags ◽  
Physiological Quality ◽  
Drying Rates ◽  
And Storage ◽  
Water Contents

The physiological quality of seeds of native species is important to produce healthy saplings and therefore guarantee the success of programs to recover disturbed vegetation. This reinforces the necessity for investigating the physiological quality of those seeds. To evaluate the effects of different drying rates on the germination, moisture content and storability of Eugenia involucrata diaspores, mature fruits collected at Mogi Guaçu, SP, Brazil had their epi- and mesocarps removed by washing and were dried at 30, 40 or 50ºC until their water content was reduced from 57% (fresh diaspores) to 13% (final drying), totaling six drying levels. In a second experiment, diaspores had their moisture content reduced from 57% to 49%, at 30ºC, totaling six drying levels (0h, 1h, 2h, 3h, 4h and 5h), and were kept for 180 days in plastic bags under cold storage. The drying rate had no effect on tolerance to desiccation by E. involucrata diaspores; water contents lower than 51% decreased both germinability and storability. Diaspores can be stored for up to 180 days as long as their water content is reduced to 53% and they are kept inside plastic bags under cold storage.

scholarly journals Effect of Different Packaging Materials and Storage Environments on Seed Quality of Sesame (Sesamum Indicum L.)

2019 ◽  
Vol 11 (1) ◽  
pp. 1
Author(s):  
Hnin Thida Nyo ◽  
Nyein Nyein Htwe ◽  
Kyaw Kyaw Win
Keyword(s):  
Moisture Content ◽  
Seed Quality ◽  
Carbon Dioxide Concentration ◽  
Sesame Seed ◽  
Germination Percentage ◽  
Release Time ◽  
Packaging Materials ◽  
Dormancy Release ◽  
Heat Accumulation ◽  
And Storage

The speed of the deterioration of oil-seeds depends on conditions of the storage environment and understanding dormancy release time is important to increase the amount and uniformity in germination. Therefore, the present study was conducted to evaluate the effect of different packaging materials and storage environments on viability and dormancy of sesame. The black sesame seed was stored in three packaging materials (woven polypropylene bag, IRRI super bag, metal bin) under two environment conditions (ambient and cold storage) for eight-month (initial storage, 2-month, 4-month, 6-month and 8-month). The effect of storage environments, packaging materials and storage durations on germination percentage, germination index, seedling vigor index I and II were significant. The moisture content decreased in the early parts of storage periods and then increased in later. The moisture content of seeds in the packaging materials increased in long storage due to the effect of seed respiration and heat accumulation in a package. Higher viability was observed in ambient storage, and in a woven polypropylene bag. Because the dormancy release was slow in low- temperature condition and the carbon dioxide concentration in the airtight package inhibited the dormancy break. It also increased during storage and the earliest fully dormancy break has occurred in six-month of woven polypropylene bag storage under ambient condition. Therefore, the germination and dormancy release of sesame were influenced by storage environments packaging materials and storage durations.

Research on Condensation in Porous Wall Exposed to Hot Humid Climate

2012 ◽  
Vol 174-177 ◽  
pp. 2006-2011
Author(s):  
Zhen Hua Zhuo ◽  
Xing Guo Guo
Keyword(s):  
Moisture Content ◽  
Moisture Transfer ◽  
Strong Dependence ◽  
Porous Wall ◽  
Water Source ◽  
Vapor Condensation ◽  
Condensation Rate ◽  
Humid Climate ◽  
Heat And Moisture ◽  
Wet Zone

According to the work of Motakef and EI-Masri, the wall is divided into dry-wet-dry zones. Based on the heat and moisture transfer through porous media, considered the vapor condensation as a vapor sink, water source and heat source, coupled heat and moisture equations for wet zone were established. Closed-form analytical expressions for the condensation rate, moisture content and the time at which critical moisture content value is reached are obtained. The analysis has indicated that the condensation rate exhibits a strong dependence on the ratio of temperature drops across the wet zone to the square of that zone width and the maximum condensation rate value is reached at the boundary of wet zone close to lower temperature.

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