scholarly journals The outer quality loss during grain post-harvest treatment and handling

2012 ◽  
Vol 49 (No. 3) ◽  
pp. 91-102
Author(s):  
P. Kroupa
Keyword(s):  
Mechanical Damage ◽  
Quality Loss ◽  
Partial Knowledge ◽  
Counter Flow ◽  
Post Harvest ◽  
Grain Crushing ◽  
Grain Damage ◽  
Treatment Objective ◽  
Food Grain ◽  
And Storage

In the paper are presented results of grain outer quality loss investigation during its post-harvest treatment. Objective was to determine the grain damage during its transport by bucket elevators of type “SANFON” at bucket peripheral velocity 2.0 m/s and 2.8 m/sof capacity 40 t/hand 80 t/h, respectively. The damage was investigated at counter-flow and parallel-flow bucket filling. From the measured results resulted the conclusion, that the bucket elevators tend rather to grain crushing, i.e. fraction creation than to smaller damage. On basis of partial knowledge chain elevators have no significant tendency to fraction generation, but incline considerably to the transported grain total mechanical damage at performance significantly lower than is the nominal one. In that case total mechanical damage ranged from 1.78 to 1.98%. Auger conveyers tend rather to total mechanical damage of transported grain than to the fraction creation. This is caused mainly by the friction between the transported grain and transporting “trough”. Total mechanical damage is in range from 1.36 to 1.73%. Belt elevators are friendly to transported grain and therefore are evitable for grain horizontal transport in lines for reception, treatment and storage of food grain crops.

scholarly journals Studies on Post-Harvest Ripening and Storage of Banana Fruits. Part IV

1966 ◽  
Vol 13 (9) ◽  
pp. 367-370 ◽  
Author(s):  
TAKAO MURATA ◽  
KUNIYASU OGATA
Keyword(s):  
Post Harvest ◽  
And Storage

Post-Harvest Handling and Storage

Strawberries ◽  
2019 ◽  
pp. 411-429 ◽  
Author(s):  
B.V.C. Mahajan ◽  
Alemwati Pongener
Keyword(s):  
Post Harvest ◽  
And Storage

scholarly journals Dabai Fruit: Postharvest Handling and Storage

2020 ◽  
Author(s):  
Siti Hajar Ariffin ◽  
Rosnah Shamsudin ◽  
I. S. M. A. Tawakkal
Keyword(s):  
Shelf Life ◽  
Room Temperature ◽  
Quality Loss ◽  
Potential Development ◽  
Postharvest Handling ◽  
Canarium Odontophyllum ◽  
Handling Quality ◽  
And Storage ◽  
Wide Potential ◽  
Quality And Shelf Life

Dabai (Canarium odontophyllum) or also known as ‘Sarawak olive’ is one of the potential indigenous seasonal fruits commonly found in Sarawak. Due to its high nutritional contents, it has wide potential to be marketed locally and exported internationally. Dabai is very delicate and highly perishable. The shelf life of dabai is usually 3 days when stored in room temperature (27°C). Improper storage and handling lead to the reduction of quality and shelf life of the fruit throughout storage. There is still limitation on the information of postharvest, storage and handling, quality and shelf life of dabai. Studies on quality and shelf life affected by storage treatment and packaging are necessary in optimising shelf life and minimising quality loss of the fruit. This could ensure further potential development of the fruit locally and internationally.

scholarly journals Management of Postharvest Diseases of Vegetables in a Tropical and Sub-tropical Environment of the Kingdom of Eswatini

2020 ◽  
pp. 1-13
Author(s):  
Diana M. Earnshaw ◽  
Michael T. Masarirambi ◽  
Bonginkhosi E. Dlamini ◽  
Kwanele A. Nxumalo
Keyword(s):  
Management Strategies ◽  
Pathogenic Fungi ◽  
Essential Amino Acids ◽  
Point Of View ◽  
Postharvest Diseases ◽  
Household Level ◽  
Post Harvest ◽  
Side Dish ◽  
Opportunistic Pathogenic ◽  
And Storage

Vegetables are important in human diets as a side dish eaten either cooked or raw as in salads. They are important for their nutritional contribution as major sources of minerals, vitamins, nine essential amino acids, beneficial phytochemicals, fibre and interesting colour from an aesthetic point of view. Despite the immerse health benefits offered by vegetables there are challenges encountered in their post-harvest handling and storage up to consumption. Challenges include post-harvest losses due to diseases. Some losses occur even at household level when vegetables are not stored appropriately when stored under the sink where humidity can be high leading to an environment which promotes diseases. Diseases in the post-harvest chain are caused by bacteria and opportunistic pathogenic fungi. Post-harvest losses of vegetables are not only a threat to nutritional security but a threat to food security as well. The aim of this research study was to document major post-harvest diseases of vegetables found in the Kingdom of Eswatini and to suggest appropriate management strategies or ways of alleviating them.

scholarly journals CARACTERIZAÇÃO FÍSICA DAS SEMENTES DE URUCUM (Bixa orellana L.), VISANDO PROCESSOS DE PÓS-COLHEITA

2019 ◽  
Vol 34 (4) ◽  
pp. 592-600
Author(s):  
Myrella Katlhen Da Cunha de Araujo ◽  
Claudomiro Roberto De Araújo Júnior ◽  
Arlindo Modesto Antunes ◽  
Rodrigo de Jesus Silva ◽  
Magnun Antonio Penariol da Silva
Keyword(s):  
Water Content ◽  
Unit Volume ◽  
Economic Importance ◽  
Angle Of Repose ◽  
Bixa Orellana ◽  
Post Harvest ◽  
Volume Porosity ◽  
Construction Operation ◽  
And Storage

CARACTERIZAÇÃO FÍSICA DAS SEMENTES DE URUCUM (Bixa orellana L.), VISANDO PROCESSOS DE PÓS-COLHEITA   MYRELLA KATLHEN DA CUNHA DE ARAUJO1; CLAUDOMIRO ROBERTO DE ARAUJO JÚNIOR2; ARLINDO MODESTO ANTUNES3; RODRIGO DE JESUS SILVA4 E MAGNUN ANTONIO PENARIOL DA SILVA5   1Acadêmica do curso de Engenharia Agrícola, Universidade Federal Rural da Amazônia – UFRA, (PA 451, Km 03, Bairro Açaizal, 68680-000, Tomé-Açu, Pará, Brasil) e [email protected]. 2 Acadêmico do curso de Engenharia Agrícola, Universidade Federal Rural da Amazônia – UFRA, (PA 451, Km 03, Bairro Açaizal, 68680-000, Tomé-Açu, Pará, Brasil) e [email protected]. 3 Professor Assistente do curso de Engenharia Agrícola, Universidade Federal Rural da Amazônia – UFRA, (PA 451, Km 03, Bairro Açaizal, 68680-000, Tomé-Açu, Pará, Brasil) e [email protected]. 4 Professor Adjunto do curso de Engenharia Agrícola, Universidade Federal Rural da Amazônia – UFRA, (PA 451, Km 03, Bairro Açaizal, 68680-000, Tomé-Açu, Pará, Brasil) e [email protected]. 5 Professor Adjunto do Campus de Engenharia Agrícola, Universidade Federal Rural da Amazônia – UFRA, (PA 451, Km 03, Bairro Açaizal, 68680-000, Tomé-Açu, Pará, Brasil) e [email protected].   RESUMO: O urucum demonstra importância econômica na comercialização dos grãos moídos para produção colorífica e de corantes, no entanto, há poucos estudos sobre suas características físicas em processos pós-colheita. Além disso, o intuito deste trabalho foi comparar o ângulo de repouso das sementes em diferentes protótipos. O estudo foi realizado no laboratório da Universidade Federal Rural da Amazônia, Tomé-Açu (PA), para verificar: teor de água, biometria, esfericidade, volume unitário, porosidade e ângulo de repouso. O teor de água utilizou cinco amostras (50 sementes), biometria obteve eixos ortogonais de 100 sementes, e utilizadas 20 sementes para esfericidade e volume unitário. Ainda, obtidas médias em 3 equipamentos de ângulo de repouso, (5 repetições). Como resultado, o teor de água (b.u.) foi baixo, (0 a 10%); a esfericidade variou de 61,45 a 90,66%; volume unitário foi de 0,03 a 0,13 cm3 e as porosidades foram (0,69, 0,77 e 0,78). Os ângulos de repouso nos equipamentos (A- adaptado em relação a B; B- equipamento estabelecido e C- protótipo alternativo) foram, respectivamente: 38,85; 31,92 e 32,14°, não diferindo estatisticamente. Ademais, o estudo buscou trazer informações sobre a espécie e colaborar com trabalhos de construção, operação e adaptação de equipamentos de secagem e armazenamento.   Palavras-chave: esfericidade, porosidade, volume unitário.   PHYSICAL CHARACTERIZATION OF ANNATTO (Bixa orellana L.) SEEDS, AIMED POST-HARVEST PROCESSES   ABSTRACT: Annatto demonstrates economic importance in the commercialization of ground grains for color and dye production; however, there are few studies on their physical characteristics in post-harvest processes. In addition, the aim of this work was to compare the rest angle of seeds in different prototypes. The study was carried out in the laboratory of Federal Rural University of the Amazon, Tomé-Açu (PA), to verify: water content, biometrics, sphericity, unit volume, porosity and angle of repose. The water content used five samples (50 seeds), biometrics obtained orthogonal axes of 100 seeds, and 20 seeds were used for sphericity and unit volume. Still, averages were obtained in 3 equipment of angle of rest (5 repetitions). As result, the water content (b.u.) was low (0 to 10%); sphericity ranged from 61.45 to 90.66%; unit volume was 0.03 to 0.13 cm3 and porosities were 0.69, 0.77 and 0.78. The rest angles in the equipment (A- adapted in relation to B; B- established equipment and C- alternative prototype) were, respectively: 38.85; 31.92 and 32.14°, not differing statistically. In addition, the study sought to bring information about the species and collaborate with construction, operation and adaptation of drying and storage equipment.   Keywords: sphericity, porosity, unit volume.

scholarly journals Synergetic effects of two botanical entomocides as pest-protectants in maize grains

2016 ◽  
Vol 89 (2) ◽  
Author(s):  
Kayode David Ileke ◽  
Jacobs Mobolade Adesina ◽  
Emmanuel Oluwaseun Obajulaye
Keyword(s):  
Weight Loss ◽  
Adult Emergence ◽  
Adult Mortality ◽  
Post Treatment ◽  
Sitophilus Zeamais ◽  
Economic Losses ◽  
Plant Products ◽  
Post Harvest ◽  
Synergetic Effects ◽  
Grain Damage

<em>Sitophilus zeamais</em> Motschulsky infestation causes severe post-harvest losses of cereal grains in Nigeria leading to major nutritional and economic losses. A laboratory study was conducted to determine the efficacy of <em>Myrcianthes fragrans</em> and <em>Aframomum melegueta</em> seed powders and methanol extract as well as their synergetic effects on <em>S. zeamais</em>. The ability of the plant products to protect maize grain against <em>S. zeamais</em> infestation was assessed in terms of mortality 24 to 96 h posttreatment, oviposition, and adult emergence, weight loss and grains damage. <em>M. fragrans</em> and <em>A. melegueta</em> products significantly cause adult mortality of <em>S. zeamais</em>. <em>M. fragrans</em> products were the most toxic as it evoked 100% adult mortality within 24 h of application while<em> A. melegueta</em> products evoked 100% mortality of <em>S. zeamais</em> at 48 and 72 h post treatment, respectively. The synergetic effects of the plant products caused 100% adult mortality at 48 and 72 h post-treatment, respectively. Oviposition, adult emergence, weight loss and damage of the maize grains treated with the plant products were completely inhibited compared with untreated grains. The results obtained revealed that 2 g and 2% sole application of <em>M. fragrans</em> and mixed application of <em>M. fragrans</em> and <em>A. melegueta</em> products were effective in controlling <em>Sitophilus zeamais</em> post-harvest infestation and grain damage and could serve as an alternative to synthetic insecticide in ensuring steady supply of maize grains, thus ensuring food security as the plants are of medicinal and nutritional quality.

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