Pathogenic Fungi Associated with Post-Harvest Deterioration of Cassava

Post-harvest deterioration is the most important cause of loss in cassava production and this is mainly as a result of microbial invasion of the tubers. This research was therefore carried out to identify and control the organisms responsible for post-harvest deterioration of cassava tubers. Ethanolic and water extractions ofAzadirachta Indica(A. Juss) leaves andAframomum melegueta(Schumann) seeds were used as antifungal agents and the susceptibility of four of the isolated pathogenic fungi to them was observed in culture. The tested organisms wereAspergillus nigerVan Tiegh,Botryodiplodia theobromaePat,Fusarium solani(Mart). Sacc andPenicillium oxalicumCurrie and Thom. All tested organisms showed different degrees of inhibitions by the extracts withA. nigerbeing the most inhibited by ethanolic extraction ofA. melegueta. The overall result showed thatA. indicawas more active on the organisms though it’s effects and that ofA. meleguetawere not significantly different (P>0.05).

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BIBLICAL CHRISTIAN WORLDVIEW ON POST-HARVEST PATHOGENIC FUNGI IN THE TRADITIONAL MARKET CORN SEEDS

JOHME Journal of Holistic Mathematics Education ◽

10.19166/johme.v5i1.2928 ◽

2021 ◽

Vol 5 (1) ◽

pp. 86

Author(s):

Grace Purnamasari Christian ◽

Wahyu Irawati

Keyword(s):

Aspergillus Niger ◽

Aspergillus Flavus ◽

Complex Structure ◽

Toxic Substance ◽

Pathogenic Fungi ◽

Post Harvest ◽

The Bible ◽

Aspergillus Sp ◽

In The Beginning ◽

And Function

The post-harvest fungi is one of the greatest cause of various diseases. Particularly, in fungus that infects seeds, the toxic substance called aflatoxin is found. This has caused us to wonder: Has fungi been pathogenic fungi since the beginning of creation? The purpose of this research is to study: 1) The Place of Fungi in God’s Original Creation and the Origin of Pathogenic Fungi, 2) Characterization of post-harvest fungus on corn seeds, 3) Aspergillus sp.’s Structure as Proof of God’s Wonderful Original Creation and Providence, and 4) The factors that contribute to the growth of fungi in post-harvest corn seeds and our responsibility. We conclude that in the beginning, fungi were a part of God’s originally good and perfect creation. These fungi were created by God with the structure and function to support its operation in fulfilling God’s creative purpose. The complex structure of Aspergillus niger and Aspergillus flavus that infected the corn seeds showed God’s providence after the Fall. Pathogenic fungi were the result of the Fall of man into sin. Their growth is caused by the failure to give proper care to the crops. But this should not discourage us since the Bible tells us that God is continually working to restore His creation. Therefore, we are called to be stewards of His creation, to develop and preserve whatever is entrusted in our hands, including the crops for God’s glory and under His authority until He has fully renewed and restored everything.BAHASA INDONESIA ABSTRACT: Jamur pasca panen merupakan salah satu penyebab terbesar timbulnya berbagai penyakit, khususnya disebabkan oleh jamur yang menginfeksi biji-bijian dan menghasilkan substansi beracun disebut dengan aflatoksin. Keadaan ini menimbulkan pertanyaan apakah jamur patogenik ada sejak awal penciptaan? Penelitian ini bertujuan untuk mempelajari: 1) Posisi jamur patogenik di awal penciptaan dan asal mula jamur patogenik, 2) karakteristik jamur pasca panen pada biji jagung, 3) struktur Aspergillus sp sebagai bukti dari providensi Allah akan ciptaanNya yang sangat luar biasa, 4) faktor-faktor yang berkontribusi terhadap pertumbuhan jamur pasca panen biji jagung dan Tanggung jawab kita. Dari hasil penelitian ini disimpulkan bahwa pada mulanya, jamur merupakan bagian ciptaan Allah yang sungguh amat baik dan sempurna. Struktur yang kompleks dari Aspergillus niger dan Aspergillus flavus yang menginfeksi biji jagung menunjukkan providensi Allah setelah kejatuhan dosa. Pertumbuhan jamur patogenik merupakan gambaran kejatuhan manusia ke dalam dosa yaitu kegagalan manusia untuk memberikan pemeliharaan yang memadahi pada biji-bijian pasca panen. Namun demikian, keadaan ini tidak mematahkan semangat kita karena Alkitab mengatakan bahwa Allah masih terus bekerja untuk memulihkan ciptaanNya. Oleh karena itu, diharapkan kita semua menjadi pelayan atas ciptaanNya untuk mengembangkan dan menjaga apa yang dipercayakan kepada kita di bawah otoritasNya termasuk biji-bijian untuk memuliakan Allah hingga Dia secara penuh memperbaharui dan memulihkan segala sesuatu

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

Current Journal of Applied Science and Technology ◽

10.9734/cjast/2019/v38i630465 ◽

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.

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Lipid peroxidation, activities of superoxide dismutase and catalase during post-harvest deterioration of cassava (Manihot esculenta Crantz) root tubers

International Biodeterioration & Biodegradation ◽

10.1016/s0964-8305(02)00168-3 ◽

2003 ◽

Vol 52 (3) ◽

pp. 129-133 ◽

Cited By ~ 5

Author(s):

G.K. Isamah ◽

S.O. Asagba ◽

A.O. Ekakitie

Keyword(s):

Lipid Peroxidation ◽

Superoxide Dismutase ◽

Manihot Esculenta ◽

Manihot Esculenta Crantz ◽

Post Harvest ◽

Post Harvest Deterioration

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Post-harvest deterioration of sugarcane and its relationship with the activities of invertase and dextransucrase during late-crushing season in sub-tropics

Sugar Tech ◽

10.1007/s12355-008-0023-z ◽

2008 ◽

Vol 10 (2) ◽

pp. 133-136 ◽

Cited By ~ 6

Author(s):

Priyanka Singh ◽

S. Solomon ◽

A. K. Shrivastava ◽

C. P. Prajapati ◽

R. K. Singh

Keyword(s):

Post Harvest ◽

Post Harvest Deterioration

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Molecular markers reliably predict post-harvest deterioration of fresh-cut lettuce in modified atmosphere packaging

Horticulture Research ◽

10.1038/s41438-018-0022-5 ◽

2018 ◽

Vol 5 (1) ◽

Cited By ~ 7

Author(s):

Ivan Simko ◽

Ryan J. Hayes ◽

Maria-Jose Truco ◽

Richard W. Michelmore ◽

Rudie Antonise ◽

...

Keyword(s):

Molecular Markers ◽

Modified Atmosphere Packaging ◽

Modified Atmosphere ◽

Post Harvest ◽

Fresh Cut ◽

Post Harvest Deterioration

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PECTIC ENZYMES OF ASPERGILLUS ACULEATUS ASSOCIATED WITH POST-HARVEST DETERIORATION OF CITRUS SINENSIS FRUIT

Journal of Food Biochemistry ◽

10.1111/j.1745-4514.1989.tb00397.x ◽

1989 ◽

Vol 13 (4) ◽

pp. 243-252 ◽

Cited By ~ 3

Author(s):

V. A. ADISA

Keyword(s):

Citrus Sinensis ◽

Aspergillus Aculeatus ◽

Post Harvest ◽

Pectic Enzymes ◽

Post Harvest Deterioration

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Genetic modification and its impact on industry structure and performance: post-harvest deterioration of cassava in Thailand

Journal on Chain and Network Science ◽

10.3920/jcns2007.x083 ◽

2007 ◽

Vol 7 (2) ◽

pp. 133-142 ◽

Cited By ~ 5

Author(s):

Paul Vlaar ◽

Paul van Beek ◽

Richard Visser

Keyword(s):

Genetic Modification ◽

Genetically Modified ◽

Scientific Evidence ◽

Seasonal Fluctuation ◽

Post Harvest ◽

Processing Plants ◽

Post Harvest Deterioration ◽

And Performance ◽

Starch Industry

Genetic modification has led to fierce debates around the world. Nevertheless, scientific evidence for its potential effects on the structure and performance of industries has hitherto remained rather meagre. In this article, we take some preliminary steps towards closing this gap by exploring the effects of the introduction of a genetically modified cassava variety on the structure and efficiency of the starch industry in Thailand. Currently, producers of cassava starch are confronted with a problem called post-harvest deterioration, which reduces the quantity and quality of starch in cassava roots within 24 to 48 hours after harvesting, leading to lower payments for farmers and lower starch recovery rates for factories. In addition, post-harvest deterioration prohibits factory owners to hold large stocks of fresh cassava. Combined with a strong seasonal fluctuation of supply, this leads to a low utilisation of installed processing capacities at the starch factories. In this article, we examine how the structure and performance of the Thai starch industry would change in case a genetically modified cassava variety would be introduced that no longer suffers from post-harvest deterioration. After having interviewed 19 stakeholders in this industry, we developed two simple linear programming models to examine the optimal locations, capacity classes and utilisation percentages for starch processing plants in the Northeast of Thailand. Our findings demonstrate that an extension of the storability of cassava to 45 days will not only diminish the number of factories needed, but it will also cause most large-sized factories to be replaced with medium-sized plants. Moreover, introducing a new cassava variety with such properties is estimated to render benefits of approximately US $ 35 million for Thai cassava farmers and factory owners.

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