نتایج جستجو برای: stored grain protectant

تعداد نتایج: 125146  

2014
Hongliang Fu Jing Lu Huawei Tao Beibei Zhang

In order to improve the recognition rate and accuracy of stored grain pests classification, saving classification time, a new recognition method based on the Gabor wavelet and sparse representation is proposed in this paper. In this paper, nine typical pests in the stored grain are regarded as the research object, Gabor energy features and morphological features are extracted, principal compone...

Journal: :Bulletin of the National Research Centre 2021

Abstract Background Botanical pesticides may be a possible solution to the post-harvest loss of stored grains faced by farmers and food processors. In this study, seed preservatives properties Secamone afzelii leaves extracts at 50, 100, 150, 200 µl concentrations were investigated against lesser grain borer Rhyzopertha dominica (Fabricus) infestation on wheat weight germination capability arra...

2014
Linlin Wei Rimao Hua Maoye Li Yanzhang Huang Shiguang Li Yujie He Zonghai Shen

This study aims to develop eco-friendly botanical pesticides. Dried fruits of star anise (Illicium verum Hook.f. (Austrobaileyales: Schisandraceae)) were extracted with methyl alcohol (MA), ethyl acetate (EA), and petroleum ether (PE) at 25°C. The constituents were determined by gas chromatography-mass spectrometry, and the repellency and contact toxicity of the extracts against Sitophilus zeam...

2000
ZIAD W. JARADAT RONALD R. MARQUARDT

The effect of non-reducing sugars (sucrose, lactose and trehalose), complex carbohydrates (cyclodextrin and dextran), infant formula or egg yolk on the stability of purified chicken IgY was evaluated under different conditions. Regardless of the protectant that was used, about 20% of the activity of IgY was lost during freeze-drying except in the presence of infant formula where the loss of IgY...

Journal: :International Journal of Zoology and Animal Biology 2019

Journal: :Japan Agricultural Research Quarterly: JARQ 2008

Journal: :Australian Journal of Entomology 1963

2018
Ibrahim B. Baoua Ousmane Bakoye Laouali Amadou Larry L. Murdock Dieudonne Baributsa

Experiments in Niger assessed whether extreme environmental conditions including sunlight exposure affect the performance of triple-layer PICS bags in protecting cowpea grain against bruchids. Sets of PICS bags and woven polypropylene bags as controls containing 50 kg of naturally infested cowpea grain were held in the laboratory or outside with sun exposure for four and one-half months. PICS b...

2008
Mark E. Casada

Grain storage managers could improve the quality of stored grain if they could directly monitor stored grain moisture content, which is a key indicator of stored grain quality and an early indicator of deterioration. However, currently available sensors are too expensive and lack the necessary reliability in that harsh environment. A new fringing field capacitive (FFC) sensor was tested to dete...

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