Hexane Extracts of Calophyllum brasiliense Inhibit the Development of Gastric Preneoplasia in Helicobacter felis Infected INS-Gas Mice

Spices are a part of the plants used for many purposes as preservatives and as colorants in foods or as medicinal intention. Main aim of the present research was to estimate the potential antimicrobial activity of some spices from Apiaceae family such as Amni visnaga (Diş otu, Hıltan), Anethum graveolens (Dereotu), Apium graveolens (Kereviz), Coriandrum sativum (Kişniş), Cuminum cyminum (Kimyon), Daucus carota (Havuç), Foeniculum vulgare (Rezene), Petroselinum sativum (Maydanoz), Pimpinella anisum (Anason). Thus, the fruits of the plants are used in the experiments. The fruits have been extracted by n-hexane, and all extracts have been subjected to TLC (Thin Layer Chromatography). The n-hexane extracts were screened for their potential in vitro antibacterial activity against Staphylococcus aureus ATCC 29213, Enterococcus faecalis ATCC 29212, Escherichia coli ATCC 25922, Klebsiella pneumoniae ATCC 13883, Pseudomonas aeruginosa ATCC 27853 and antifungal activity against Candida albicans ATCC 10231 by microbroth dilution method. The hexane extracts of the fruits of Coriandrum sativum, Anethum graveolens, Daucus carota, and Pimpinella anisum did not show antimicrobial activity against tested microorganisms. Except these, the other extracts having MIC values of 2.5-5-10 mg/mL exhibited antimicrobial effect against some tested microorganisms. These results demonstrate that the extracts which have an antimicrobial effect can probably play a role as an antimicrobial agent owing to their nonpolar components which are accumulated to the n-hexane extracts.

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Treatment of wastewater from oil manufacturing plant by yeasts

Water Science & Technology ◽

10.2166/wst.1996.0262 ◽

1996 ◽

Vol 34 (11) ◽

pp. 51-58 ◽

Cited By ~ 18

Author(s):

K. Chigusa ◽

T. Hasegawa ◽

N. Yamamoto ◽

Y. Watanabe

Keyword(s):

Pilot Plant ◽

Removal Rate ◽

Oil Removal ◽

Oxidation Activity ◽

Single Strain ◽

Manufacturing Plants ◽

Yeast Strains ◽

Hexane Extracts ◽

One Year ◽

Raw Wastewater

Nine strains of yeasts capable of decomposing oil were isolated in order to directly treat wastewater from oil manufacturing plants with no pretreatment. The oil decomposing ability of these yeast strains was evaluated in terms of lipase activity and β-oxidation activity. Since the mixture of the isolated yeasts was superior to any single strain in the oil removal rate, a pilot plant utilizing the mixed strains was operated at the soybean oil factory. Following a one year pilot plant operation, it was found that 10,000 mgℓ−1 of hexane extracts in the raw wastewater could be reduced by yeast treatment to a concentration of about 100 mgℓ−1. This concentration was further treated by the activated sludge process to 2 mgℓ−1. The dominant yeasts in the pilot plant were found to form mycelial or pseudomycelial pellets and have low fermenting ability.

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Methanol, ethyl acetate and n-hexane extracts of Tragia involucrata L. leaves exhibit anxiolytic, sedative and analgesic activity in Swiss albino mice

Heliyon ◽

10.1016/j.heliyon.2020.e05814 ◽

2021 ◽

Vol 7 (1) ◽

pp. e05814

Author(s):

Md. Shofiqul Islam ◽

Samiron Sana ◽

Md. Ehsanul Haque ◽

S.M. Mushiur Rahman ◽

Abdus Samad ◽

...

Keyword(s):

Ethyl Acetate ◽

Analgesic Activity ◽

Swiss Albino Mice ◽

Hexane Extracts ◽

Albino Mice

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Anti-staphylococcal activity, cytotoxicity, and chemical composition of hexane extracts from arils and seeds of two Samoan Myristica spp

South African Journal of Botany ◽

10.1016/j.sajb.2021.01.009 ◽

2021 ◽

Vol 139 ◽

pp. 1-5

Author(s):

Marketa Houdkova ◽

Klara Urbanova ◽

Ivo Doskocil ◽

Julian Wong Soon ◽

Talie Foliga ◽

...

Keyword(s):

Chemical Composition ◽

Hexane Extracts

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Antioxidant, Antimicrobial Activities and Fatty Acid Components of Flower, Leaf, Stem and Seed of Hypericum scabrum

Natural Product Communications ◽

10.1177/1934578x1100601142 ◽

2011 ◽

Vol 6 (11) ◽

pp. 1934578X1100601 ◽

Cited By ~ 3

Author(s):

Ali Shafaghat

Keyword(s):

Fatty Acids ◽

Gas Chromatography ◽

Antimicrobial Activity ◽

Antioxidant Activity ◽

Radical Scavenging ◽

Omega 3 Fatty Acids ◽

Omega 3 ◽

Hexane Extracts ◽

Hypericum Scabrum ◽

Different Parts

The hexane extracts of flower, leaf, stem, and seed of Hypericum scabrum, which were collected from northwestern Iran, were obtained by extraction in a Soxhlet apparatus. The fatty acids were converted to methyl esters and determined by gas chromatography/flame ionization detector (GC/FID) and gas chromatography/mass spectrometry (GC/MS) systems. The hexane extract from the flower, leaf, stem, and seed contained 39.1%, 43.2%, 29.0%, and 37.6% of omega-3 fatty acids, respectively. The other main components of the flower extract were tetracosane (12.2%) and palmitic acid (9.3%), and that of the leaf extract was palmitic acid (7.4%). The stem and seed extracts contained bis(2-ethylhexyl)phthalate (18.7% and 35.7%), nonacosane (11.7% and 3.9%) and linoleic acid (6.5% and 6.9%) as major components. The hexane extracts of different parts from H. scabrum represent an important source of omega-3 fatty acids in several Hypericum species. The antioxidant activity of all hexane extracts was evaluated by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging method. The results indicate that hexane extracts from different parts of H. scabrum possess considerable antioxidant activity. The highest radical scavenging activity was detected in seed, which had an IC50 = 165 μg/mL. The antimicrobial activity of the extracts of those samples were determined against seven Gram-positive and Gram-negative bacteria ( Bacillus subtilis, Enterococcus faecalis, Staphylococcus aureus, S. epidermidis, Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae), as well as three fungi ( Candida albicans, Saccharomyces cerevisiae, and Aspergillus niger). The bioassay showed that the oil exhibited moderate antimicrobial activity. This study reveals that the all parts of this plant are attractive sources of fatty acid components, especially the essential ones, as well as of effective natural antioxidants.

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CD4+ CD8αα+ T cells in the gastric epithelium mediate chronic inflammation induced by Helicobacter felis

Microbial Pathogenesis ◽

10.1016/j.micpath.2021.105151 ◽

2021 ◽

pp. 105151

Author(s):

Guojing Ruan ◽

An Huang ◽

Chupeng Hu ◽

Ningyin Xu ◽

Menghui Fan ◽

...

Keyword(s):

T Cells ◽

Chronic Inflammation ◽

Gastric Epithelium ◽

Helicobacter Felis

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Evaluation of a Group-Specific 16S Ribosomal DNA-Based PCR for Detection of Helicobacter bizzozeronii, Helicobacter felis, and Helicobacter salomonis in Fresh and Paraffin-Embedded Gastric Biopsy Specimens

Journal of Clinical Microbiology ◽

10.1128/jcm.39.3.1197-1199.2001 ◽

2001 ◽

Vol 39 (3) ◽

pp. 1197-1199 ◽

Cited By ~ 11

Author(s):

D. De Groote ◽

F. Haesebrouck ◽

L.-J. van Doorn ◽

P. Vandamme ◽

R. Ducatelle

Keyword(s):

Ribosomal Dna ◽

Gastric Biopsy ◽

Helicobacter Felis ◽

16S Ribosomal Dna ◽

Biopsy Specimens

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Florística e estrutura do componente arbustivo-arbóreo de uma floresta higrófila da bacia do rio Jacaré-Pepira, SP, Brasil

Acta Botanica Brasilica ◽

10.1590/s0102-33062003000400002 ◽

2003 ◽

Vol 17 (4) ◽

pp. 495-506 ◽

Cited By ~ 25

Author(s):

Márcia C. M. Marques ◽

Sandro Menezes Silva ◽

Alexandre Salino

Keyword(s):

Sao Paulo ◽

São Paulo ◽

Calophyllum Brasiliense

As florestas higrófilas são formações ribeirinhas caracterizadas por ocorrerem em solo permanentemente encharcado e restritas a pequenos fragmentos junto a outros tipos vegetacionais. Neste trabalho caracterizaram-se a florística e a estrutura do componente arbustivo-arbóreo (plantas com DAP>5cm) de uma área de 0,36ha de floresta higrófila localizada em Brotas (48º06'W 22º16'S, 470m.s.m.), Estado de São Paulo, usando-se método de parcelas (total de 24 parcelas). No total foram amostrados 735 indivíduos, distribuídos em 32 famílias e 51 espécies. As espécies que se destacaram na comunidade devido aos elevados valores de importância foram Calophyllum brasiliense Camb., Protium almecega L. Marchand, Podocarpus sellowii Klotzch., Tapirira guianensis Aubl. e Dendropanax cuneatum DC. Decne. & Planch. O índice de diversidade de Shannon foi igual a 2,81, valor pouco superior aos descritos para florestas semelhantes. Na comunidade, as espécies generalistas com relação ao encharcamento do solo e as de solo drenado contribuíram na riqueza total (juntas 62% do total de espécies amostradas), enquanto as espécies de solo encharcado tiveram maior contribuição na composição da dominância (66% da dominância total) e densidade (67% da densidade total) relativas. A diversidade de situações topográficas e a entrada de espécies da vegetação do cerrado adjacente permitiram que espécies com diferentes exigências hídricas se estabelecessem na área relativamente pequena da floresta e influenciaram fortemente a florística e estrutura da comunidade.

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