scholarly journals Сравнительная характеристика противоварроатозной эффективности растительных акарицидов в различные периоды года

Author(s):  
Г. А. Лукьянова

Проведено аналіз противарроатозноп ефективності рослинних акарицидів (порошок трави полину гіркого, порошок листя евкаліпта, дим кореня хріну) при оброб-ці бджолиних сімей перед головним медозбором (літо) і перед формуванням зимового клубу (осінь). Акарицидні обробки з використанням рослинних препаратів на ос-нові трави полину гіркого, листя евкаліпта й кореня хріну низькоефективні за осінньоп обробки проти вар-роатозноп інвазії. Порошок трави полину гіркого –ефективний екологічно чистий засіб для боротьби з варроатозом перед головним медозбором. Порошок листя евкаліпта має 55,94±10,21 % ефективність за обробки бджолиних сімей перед головним медозбором. Корінь хріну низькоефективний для боротьби з варроа-тозною інвазією. The analysis of antivarroatosic efficiency of herbal acaricides (powder of wormwood bitter grass, powder of eucalyptus leaves, smoke of horse-radish root) is conducted in the processing of bee families before the main nectar flow (summer) and before forming of winter club (autumn). Acaricidal processing with the use of vegetable preparations on the basis of wormwood bitter grass, eucalyptus leaves and horse-radish root is low effective at autumn treatment against a varroa invasion. Powder of wormwood bitter grass is an effective environmentally clean mean for a fight with varroatosis before the main сollection of honey. Powder of eucalyptus leaves possesses 55,94±10,21 % by efficiency in the processing of bee families before main сollection of honey. Horse-radish root is low effective for a fight against a varroatosis invasion.

2021 ◽  
Vol 672 (1) ◽  
pp. 012017
Author(s):  
Iswahyono ◽  
A.S. Saleh ◽  
S Djamila ◽  
A. Bahariawan ◽  
L. Komariah

2014 ◽  
Vol 62 (15) ◽  
pp. 3422-3431 ◽  
Author(s):  
Yunjiao Chen ◽  
Brian Onken ◽  
Hongzhang Chen ◽  
Suyao Xiao ◽  
Xiaojuan Liu ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shahrbanoo Hamedi ◽  
M. Mehdi Afsahi ◽  
Ali Riahi-Madvar ◽  
Ali Mohebbi

AbstractThe main advantages of the dried enzymes are the lower cost of storage and longer time of preservation for industrial applications. In this study, the spouted bed dryer was utilized for drying the garden radish (Raphanus sativus L.) root extract as a cost-effective source of the peroxidase enzyme. The response surface methodology (RSM) was used to evaluate the individual and interactive effects of main parameters (the inlet air temperature (T) and the ratio of air flow rate to the minimum spouting air flow rate (Q)) on the residual enzyme activity (REA). The maximum REA of 38.7% was obtained at T = 50 °C and Q = 1.4. To investigate the drying effect on the catalytic activity, the optimum reaction conditions (pH and temperature), as well as kinetic parameters, were investigated for the fresh and dried enzyme extracts (FEE and DEE). The obtained results showed that the optimum pH of DEE was decreased by 12.3% compared to FEE, while the optimum temperature of DEE compared to FEE increased by a factor of 85.7%. Moreover, kinetic parameters, thermal-stability, and shelf life of the enzyme were considerably improved after drying by the spouted bed. Overall, the results confirmed that a spouted bed reactor can be used as a promising method for drying heat-sensitive materials such as peroxidase enzyme.


Author(s):  
Asaka Takahashi ◽  
Tsuyoshi Yamada ◽  
Taito Kobayashi ◽  
Kei Kumakura ◽  
Hiroki Matsuoka

Natural Dyes ◽  
10.5772/20738 ◽  
2011 ◽  
Author(s):  
Rattanaphol Mongkholrattanasit ◽  
Jiri Krystufek ◽  
Jakub Wiener ◽  
Jarmila Studnickov

2010 ◽  
Vol 43 (26) ◽  
pp. 55-60
Author(s):  
Yasuhito Fujita ◽  
Hiroshi Nakashima ◽  
Hiroaki Tanaka ◽  
Juro Miyasaka ◽  
Katsuaki Ohdoi ◽  
...  

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