scholarly journals Use of Quaking Aspen Flower Buds by Ruffed Grouse: Its Relationship to Grouse Densities and Bud Chemical Composition

The Condor ◽  
1991 ◽  
Vol 93 (3) ◽  
pp. 473-485 ◽  
Author(s):  
Walter J. Jakubas ◽  
Gordon W. Gullion
Keyword(s):  
Chemical Composition ◽  
Quaking Aspen ◽  
Ruffed Grouse ◽  
Flower Buds

Ruffed grouse feeding behavior and its relationship to secondary metabolites of quaking aspen flower buds

1989 ◽  
Vol 15 (6) ◽  
pp. 1899-1917 ◽  
Author(s):  
Walter J. Jakubas ◽  
Gordon W. Gullion ◽  
Thomas P. Clausen
Keyword(s):  
Secondary Metabolites ◽  
Feeding Behavior ◽  
Quaking Aspen ◽  
Ruffed Grouse ◽  
Flower Buds

Coniferyl benzoate in quaking aspen A ruffed grouse feeding deterrent

1990 ◽  
Vol 16 (4) ◽  
pp. 1077-1087 ◽  
Author(s):  
Walter J. Jakubas ◽  
Gordon W. Gullion
Keyword(s):  
Feeding Deterrent ◽  
Quaking Aspen ◽  
Ruffed Grouse ◽  
Coniferyl Benzoate

scholarly journals IDENTIFICATION OF CHEMICAL COMPOSITION OF Eugenia aromatica AND ITS BIO-EFFICACY AGAINST Sitophilus oryzae (L.) AND Tribolium castaneum (HERBST)

2019 ◽  
pp. 26-35
Keyword(s):  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Sitophilus Oryzae ◽  
Management Program ◽  
Phytochemical Analysis ◽  
Flower Buds ◽  
Plant Oil ◽  
Potential Source ◽  
F1 Progeny

In this investigation plant oil and powder of E. aromatica were evaluated under laboratory conditions to determine their toxicity, fumigant effect and impact on F1 progeny of S. oryzae and T. castaneum adults. Essential oil and powder of flower buds obtained from Eugenia aromatica were purified and analyzed by Gas-Chromatography–Mass Spectrometer (GC-MC). The results obtained showed that the two products of E. aromatica had good disorders on the all tested parameters. For toxicity and fumigant effect the oil was the premier compared to powder. In addition, that the two products completely prevented the F1 emergence of the two insects. In respect of the toxicity and fumigation the T. castaneum was more tolerant than S. oryzae adults. Phytochemical analysis showed that euegnol (89.62%) was the premier component of essential oil, while euegnol (78.66%), caryophyllene (6.30%), -a-Terpinyl acetate (1.35%) were the major components for its powder. These findings suggest application of E. aromatica products as suitable tools as a potential source of insecticides, alternative to synthetic insecticides or using these products in integrated pest management program against stored product insects, especially S. oryzae or T. castaneum adults.

scholarly journals Antimicrobial Activity and Chemical Composition of Two Essential Oils and Eugenol from Flower Buds of

2017 ◽  
Vol 3 (1) ◽  
pp. 16-25 ◽  
Author(s):  
Natalija Atanasova-Pancevska ◽  
Jane Bogdanov ◽  
Dzoko Kungulovski
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
Flower Buds

Sodium balance in ruffed grouse as influenced by sodium levels and plant secondary metabolites in quaking aspen

1995 ◽  
Vol 73 (6) ◽  
pp. 1106-1114 ◽  
Author(s):  
Walter J. Jakubas ◽  
Christopher G. Guglielmo ◽  
Conrad Vispo ◽  
William H. Karasov
Keyword(s):  
Secondary Metabolites ◽  
Populus Tremuloides ◽  
Plant Secondary Metabolites ◽  
Plant Secondary Metabolite ◽  
Sodium Balance ◽  
Quaking Aspen ◽  
Ruffed Grouse ◽  
Acid Load ◽  
Free Ranging ◽  
Coniferyl Benzoate

Forages in boreal ecosystems are often deficient in sodium for mammalian herbivores. Moreover, consumption of various plant secondary metabolites has been associated with negative sodium balance in mammals. Neither of these issues has been investigated in birds, which differ from mammals in their ion-exchange processes and postrenal absorption of urine. Our objectives were to determine if ruffed grouse (Bonasa umbellus) can maintain sodium balance on quaking aspen (Populus tremuloides) flower buds, an important winter food, and to determine if the buds' primary plant secondary metabolite (coniferyl benzoate) further compromises a bird's sodium balance. Captive ruffed grouse were fed either aspen buds (0.063 mg∙g−1 sodium) or a formulated diet having different concentrations of coniferyl benzoate in no-choice feeding trials. Sodium excretion did not change in response to coniferyl benzoate intake or acid load from detoxication processes; however, birds were marginally in negative sodium balance (P = 0.035; −5.06 ± 2.05 mg∙kg−1∙d−1) when feeding on aspen buds. Sodium levels in the feces from free-ranging grouse (0.050 ± 0.0 mg∙g−1) and in their winter foods (0.065 mg∙g−1) indicated that these birds likely maintained sodium balance. We estimated that free-ranging ruffed grouse may need as little as 7 mg∙kg−1∙d−1 of sodium to maintain sodium balance, which is lower than the minimum sodium requirements for poultry and mammals.

scholarly journals Phenolics in the Tussilago farfara leaves

2013 ◽  
Vol 59 (1) ◽  
pp. 35-43 ◽  
Author(s):  
Justyna Chanaj-Kaczmarek ◽  
Małgorzata Wojcińska ◽  
Irena Matławska
Keyword(s):  
Chemical Composition ◽  
Chinese Medicine ◽  
Traditional Chinese Medicine ◽  
Literature Review ◽  
Respiratory Tract Diseases ◽  
Nmr Analysis ◽  
Flower Buds ◽  
Quercetin Derivatives ◽  
Tussilago Farfara ◽  
C Nmr

Summary Coltsfoot leaves (Farfarae folium) are used in the European medicine in respiratory tract diseases, for cough, bronchitis and asthmatic disorders, while in the traditional Chinese medicine only flower buds (Farfarae flos) have been recognized as a medicine. A short literature review shows that most data concern the chemical composition of the coltsfoot flowers. During the carried out studies we have isolated and identified (UV, 1H and 13C NMR, analysis of acid and enzymatic hydrolyze products) six known flavonols from the coltsfoot leaves: kaempferol and its 3-O-β-glucopyranoside and 3-O-α-rhamnopyranosyl(1→6)- β-glucopyranoside, along with quercetin derivatives: 3-O-β-arabinopyranoside, 3-O-β- glucopyranoside and 3-O-α-rhamnopyranosyl(1→6)-β-glucopyranoside. Moreover, we have detected the presence of three phenolic acids.

scholarly journals Chemical Composition and Antibacterial Activity of the Essential Oil Isolated From Flos Lonicerae (Flower Buds of Lonicera macranthoides Hand.-Mazz.)

2021 ◽  
Vol 16 (4) ◽  
pp. 1934578X2110083
Author(s):  
Sun Tao ◽  
Shi Yun ◽  
Mao Yinxue ◽  
Yang Xin ◽  
Qin Kunming
Keyword(s):  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
Antimicrobial Effect ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Flower Buds ◽  
Chinese Medicinal Herb ◽  
Flos Lonicerae ◽  
Lonicera Macranthoides

Flos Lonicerae (FL, flower buds of Lonicera macranthoides Hand.-Mazz.) is a traditional Chinese medicinal herb that is officially listed in the Chinese Pharmacopoeia. The aim of this study was to screen the chemical composition and to study the antibacterial activity of essential oils of Flos Lonicerae. The chemical composition of the essential oils was investigated using gas chromatography-mass spectrometry (GC-MS). The antibacterial activity was evaluated by the disc diffusion method to determine minimum inhibitory concentration (MIC). The major compounds of Flos Lonicerae essential oils were linalool (10.4%), palmitic acid (8.0%), geraniol (6.9%), hexanal (2.5%), and α-terpineol (2.2%). Flos Lonicerae essential oils demonstrated antibacterial activity against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa. The results of this study suggest that the essential oils of Flos Lonicerae have an interesting antimicrobial effect and may be a new potential source for a natural antimicrobial applied in the pharmaceutical field.

scholarly journals Sexual Differences in Chemical Composition and Aroma-active Compounds of Essential Oil from Flower Buds of Eurya japonica

2016 ◽  
Vol 65 (4) ◽  
pp. 357-363 ◽  
Author(s):  
Mitsuo Miyazawa ◽  
Atsushi Usami ◽  
Takio Tanaka ◽  
Kaoru Tsuji ◽  
Manami Takehara ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Sexual Differences ◽  
Flower Buds ◽  
Active Compounds
Sign in / Sign up

Export Citation Format

Share Document