نتایج جستجو برای: alnus japonica
تعداد نتایج: 9525 فیلتر نتایج به سال:
1 Department of Pharmacognosy and Pharmaceutical Chemistry, College of Pharmacy, Taibah University, Al Madinah Al Munawarah 30078, Saudi Arabia 2 Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt 3 Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia 4 Department of Pharmacogno...
Thermal conditions at the beginning of the year determine the timing of pollen seasons of early flowering trees. The aims of this study were to quantify the relationship between the tree pollen season start dates and the thermal conditions just before the beginning of the season and to construct models predicting the start of the pollen season in a given year. The study was performed in Krakow ...
life table parameters of aphis pomi degeer (hemiptera: aphididae) were determined on two host plants: apple (malus pumila l.) and flowering quince (chaenomeles japonica lindl.). this study was carried out under laboratory conditions (25 ± 1 ºc and rh of 70 ± 5 % and a photoperiod of 16: 8 h (l: d). the survivorship from first instar nymphs to adult was very close in m. pumila and c. japonica. t...
Antibacterial activity of bark of Alnus pendula against methicillin-resistant Staphylococcus aureus.
BACKGROUND AND OBJECTIVES Methicillin-resistant Staphylococcus aureus (MRSA) infections are a rapidly growing health problem around the globe. Recently, there has been considerable interest in the use of plant materials as an alternative method to control pathogenic microorganisms. In this study we evaluated the antibacterial activity of bark of Alnus pendula against MRSA. MATERIALS AND METHO...
Using GC-MS the volatile composition of Jasonia glutinosa D. C., was studied by comparing two different methods for the isolation of a volatile fraction: distillation from the fresh plant in order to obtain the essential oil, and direct thermal desorption (DTD). Compared with essential oil extraction the main advantages of the DTD technique are the smaller sample amount required, and the increa...
اثرات آنتیاکسیدانی فنل و فلاونوئید تام پوست درختان افرا (Acer velutinum) و توسکا (Alnus subcordata)
Background and Aim: Plants are a rich source of phenolic compounds as natural antioxidants are important. Antioxidant compounds that prevent the spread of diseases and the destruction of many of the foods they are extracted from the bark of Acer velutinum and Alnus subcordata trees. The purpose of this study the required the use of bark as the source of phenol is the pharmaceutical industry. Ma...
Autumn coloring of deciduous broad-leaved trees in northern Japan was found to develop either from the inner part of the crown outward (inner-type), or from the outer part of the crown inward (outer-type). Inner-type trees had early-successional characteristics, whereas outer-type trees had late-successional characteristics. Although alders (Alnus hirsuta (Spach) Rupr. and A. japonica (Thunb.) ...
Taiwanese native plants inhibit matrix metalloproteinase-9 activity after ultraviolet B irradiation.
Medicinal plants have long been used as a source of therapeutic agents. They are thought to be important anti-aging ingredients in prophylactic medicines. The aim of this study was to screen extracts from Taiwanese plant materials for phenolic contents and measure the corresponding matrix metalloproteinase-9 (MMP-9) activity. We extracted biological ingredients from eight plants native to Taiwa...
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