The effects of volatile oils on in vitro potato sprout growth

2003 ◽  
Vol 46 (1-2) ◽  
pp. 1-8 ◽  
Author(s):  
H. Baydar ◽  
T. Karadoğan
Keyword(s):  
Volatile Oils ◽  
Potato Sprout ◽  
Sprout Growth

The inhibition of potato sprout growth by light..

1988 ◽  
Vol 113 (1) ◽  
pp. 137-147 ◽  
Author(s):  
E. MCGEE ◽  
R. H. BOOTH ◽  
M. C. JARVIS ◽  
H. J. DUNCAN
Keyword(s):  
Potato Sprout ◽  
Sprout Growth

scholarly journals Chemical Composition and in Vitro Antimicrobial Activity of the Volatile Oils from Gliomastix murorum and Pichia guilliermondii, Two Endophytic Fungi in Paris polyphylla var. yunnanensis

2009 ◽  
Vol 4 (11) ◽  
pp. 1934578X0900401 ◽  
Author(s):  
Jianglin Zhao ◽  
Tijiang Shan ◽  
Yongfu Huang ◽  
Xili Liu ◽  
Xiwu Gao ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Endophytic Fungi ◽  
Inhibitory Concentration ◽  
Octadecenoic Acid ◽  
Volatile Oil ◽  
Pichia Guilliermondii ◽  
Volatile Oils ◽  
Paris Polyphylla ◽  
Gliomastix Murorum

Volatile oils were obtained by hydrodistillation from Gliomastix murorum and Pichia guilliermondii, two endophytic fungi isolated from the traditional Chinese medicinal herb Paris polyphylla var. yunnanensis. The oils were analyzed for their chemical composition by gas chromatography-mass spectrometry (GC-MS). Palmitic acid (15.5%), (E)-9-octadecenoic acid (11.6%), 6-pentyl-5,6-dihydropyran-2-one (9.7%), and (7Z,10Z)-7,10- hexadecadienoic acid (8.3%) were the major compounds of the 40 identified components in G. murorum volatile oil. 1,1,3a,7-Tetramethyl-1a,2,3,3a,4,5,6,7b-octahydro-1H-cyclopropa[a]- naphthalene (25.9%), palmitic acid (15.5%), 1-methyl-2,4-di- (prop-1-en-2-yl)-1- vinylcyclohexane (7.9%), (E)-9-octadecenoic acid (7.3%), and (9E,12E)-ethyl-9,12-octadecadienoate (5.2%) were the major compounds of the 27 identified components in P. guilliermondii volatile oil. The in vitro antimicrobial activity of the volatile oils was also investigated to evaluate their efficacy against six bacteria and one phytopathogenic fungus. The minimum inhibitory concentration (MIC) values of the volatile oils against the test bacteria ranged from 0.20 mg/mL to 1.50 mg/mL. One of the most sensitive bacteria was Xanthomonas vesicatoria with an MIC of 0.20 mg/mL and 0.40 mg/mL for G. murorum and P. guilliermondii, respectively. The mean inhibitory concentration (IC50) of the volatile oils against spore germination of Magnaporthe oryzae was 0.84 mg/mL for G. murorum and 1.56 mg/mL for P. guilliermondii. These results indicated that the volatile oils from the endophytic fungi have strong antimicrobial activity and could be a potential source of antimicrobial ingredients.

scholarly journals The Effect of Essential Oil Formulations for Potato Sprout Suppression

2010 ◽  
Vol 5 (4) ◽  
pp. 1934578X1000500
Author(s):  
Moses S. Owolabi ◽  
Labunmi Lajide ◽  
Matthew O. Oladimeji ◽  
William N. Setzer
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Environmentally Benign ◽  
Plant Materials ◽  
Potato Sprout ◽  
Sprout Suppression ◽  
Essential Oil Formulations ◽  
Triton X ◽  
Sprout Growth ◽  
Sprout Suppressants

The concerns over safety and environmental impact of synthetic pesticides such as chlorpropham (CIPC) has stimulated interest in finding environmentally benign, natural sprout suppressants, including essential oils. The effects of Chenopodium ambrosioides and Lippia multiflora essential oils on sprout growth and decay of stored potatoes has been investigated. Formulations of essential oils with alumina, bentonite, or kaolin, both with and without Triton X-100 additive, were tested. These formulations have been compared to the pulverized plant materials themselves as well as wick-volatilized essential oils. The results showed that the tested oils possess compositions that make them suitable for application as sprout suppressants. Additionally, the formulation seems to be able to reduce the volatility of the essential oil and artificially extend dormancy of stored potatoes.

scholarly journals Extraction of Flavonoids from Corn Silk and Biological Activities In Vitro

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Shuangqi Tian ◽  
Yue Sun ◽  
Zhicheng Chen
Keyword(s):  
Blood Lipids ◽  
Biological Activities ◽  
Natural Antioxidants ◽  
Extraction Methods ◽  
Enzymatic Method ◽  
Supercritical Co2 Extraction ◽  
Volatile Oils ◽  
Microwave Assisted ◽  
Corn Silk

When harvesting corn, corn silk was discarded as waste, including the compounds isolated and identified from corn silk such as flavonoids, sterols, alkaloids, polysaccharides, organic acids, volatile oils, trace elements, and multivitamins. It not only pollutes the environment but also wastes resources. In this paper, extraction methods commonly used for extracting flavonoids from corn silk were reviewed, such as reagent method, enzymatic method, microwave, supercritical CO2 extraction, ultrasonic, and microwave-assisted ultrasonic. Flavonoids are natural antioxidants and have application value in scavenging free radicals, inhibiting bacteria, and regulating blood lipids. The in vitro biological activities of flavonoids from corn silk extracted by different extraction methods were also compared.

scholarly journals The therapeutic effects of Agrimonia eupatoria L.

2020 ◽  
pp. S555-S571
Author(s):  
Z Paluch ◽  
L Biriczová ◽  
G Pallag ◽  
E Carvalheiro Marques ◽  
N Vargová ◽  
...  
Keyword(s):  
Chronic Wounds ◽  
Molecular Level ◽  
Folk Medicine ◽  
Antimicrobial Activities ◽  
Therapeutic Effects ◽  
Volatile Oils ◽  
Beneficial Effects ◽  
Rosaceae Family

Agrimonia eupatoria L. is an herb of the Rosaceae family, widely used in traditional (folk) medicine for its beneficial effects. Its water extracts (infusions and decoctions) are used in the treatment of airway and urinary system diseases, digestive tract diseases, and chronic wounds. Phytochemical analyses of Agrimonia eupatoria L. identified a variety of bioactive compounds including tannins, flavonoids, phenolic acids, triterpenoids and volatile oils possessing antioxidant, immunomodulatory and antimicrobial activities. The authors review the available literature sources examining and discussing the therapeutic and pharmacological effects of Agrimonia eupatoria L. at the molecular level in vitro and in vivo.

Wavelength dependence of suppression of potato sprout growth by light

1987 ◽  
Vol 10 (8) ◽  
pp. 655-660 ◽  
Author(s):  
E. McGEE ◽  
M. C. JARVIS ◽  
H. J. DUNCAN
Keyword(s):  
Wavelength Dependence ◽  
Potato Sprout ◽  
Sprout Growth

scholarly journals Chemical Composition and Enzymatic Screening of Micromeria fruticosa serpyllifolia Volatile Oils Collected from Three Different Regions of West Bank, Palestine

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Nihaya Salameh ◽  
Naser Shraim ◽  
Nidal Jaradat
Keyword(s):  
Plant Extracts ◽  
Biological Activities ◽  
West Bank ◽  
Chemical Components ◽  
Chemical Compositions ◽  
Therapeutic Effects ◽  
Volatile Oils ◽  
Ic50 Values ◽  
Micromeria Fruticosa

Introduction. Volatile oils (VOs) have been commonly used in cosmetics and food as fragrances, flavoring, and preservative agents or in alternative medicine for their therapeutic effects. This necessitates investigating those plants and their VOs. This study was conducted to investigate the chemical compositions of the VOs of Micromeria fruticosa serpyllifolia growing widely in three regions in Palestine (i.e., Hebron, Ramallah, and Nablus districts representing south, middle, and north of West Bank). Afterwards, VOs were subjected to in vitro screening and their enzymatic properties were compared. Methods. The analysis of chemical components of VOs was performed by gas chromatography coupled with mass spectrometry (GC-MS). The antilipase activity was evaluated using porcine pancreatic lipase and p-nitrophenyl butyrate. The antiamylase activity was assessed using porcine pancreatic α-amylase, starch, and 3,5-dinitrosalicylic. Results. Plant extracts yield range was 0.67 to 0.99 w/w%. GC-MS analysis showed the high percentages of oxygenated components in the range of 86.1-89.88% and nonoxygenated components in the range of 4.38-4.71%. Seven components were observed, pulegone was the most abundant component in the three samples in the range of 74.43-86.04%, and isomenthone was the second most abundant component with the range of 3.16-14.41%. The sample collected from Nablus showed the most potent antilipase and antiamylase activity with IC50 values of 39.81 μg/mL and 3.31 μg/mL, respectively. Conclusions. The study showed that Micromeria fruticosa serpyllifolia volatile oils samples from different regions in Palestine contained different proportions of phytochemicals which provided different potential biological activities such as antiobesity and antidiabetes activities that were in line with traditional uses of the plant extracts. The plant extracts showed higher antilipase and antiamylase potency than that of the relative references and there were significant differences in these activities compared to each other.

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