Essential oils

This study contributes to the scientific data on binary combinations by investigating the synergistic antibacterial activity of the binary combination of MM or MQ EOs with thymol. This research is significant as it contributes to the global effort to combat antimicrobial resistance, providing a potential solution to this pressing public health challenge.

13p viling 11-10-2024 3 1   Download

In this study, we undertook the pyrochar from lemongrass essential oil distillation residue (LR) with incorporated alkali activation, scrutinizing its structural attributes, and assessing its efficacy in MB adsorption from aqueous solutions.

12p vifilm 11-10-2024 2 1   Download

The extraction of oil from passion fruit seeds with acetone, ethanol, ethyl acetate, isopropanol, and hexane was studied This study was the first step in investigating the exploitation of passion seeds as an additional dietary source of an essential polyunsaturated fatty acid (PUFA).

6p vibecca 01-10-2024 4 2   Download

White turmeric (Curcuma aromatica Salisb.) has been widely used as a traditional herbal drug both in Vietnam and other Asian countries. In this study, the essential oil of white turmeric rhizomes (collected from Dien Bien province) was extracted and evaluated for its chemical composition and antibacterial potential against E. coli and S. aureus.

12p vibecca 01-10-2024 1 1   Download

The chemical composition of the ginger oil from fresh rhizomes of Zingiber officinale was analyzed by GC-MS. The essential oil consists predominantly of monoterpenoids and sesquiterpenoids, including α-pinene, limonene, δ-3-carene, γ-terpinene, α-phellandrene, and β-caryophyllene.

8p viyoko 01-10-2024 3 1   Download

Essential oil (EO) from leaves of Eucalyptus robusta was extracted by hydrodistillation, and analyzed the chemical composition using gas chromatography- Flame ionization detector (GCFID), and gas chromatography/mass spectrometry (GC/MS).

7p viling 27-09-2024 4 2   Download

Magnolia citrata Noot. & Chalermglin was collected in the Central Highlands of Vietnam and examined for its essential oils’ chemical compositions and antimicrobial activities. The essential oils were obtained from the leaves, twigs, and stem barks of M. citrata using hydrodistillation, then analyzed using Gas Chromatography-Mass Spectrometry (GC-MS) and evaluated for antimicrobial activities.

10p dianmotminh02 03-05-2024 3 2   Download

Litsea baviensis Lecomte, which belongs to the family Lauraceae. The plant was found in China, Thailand and Vietnam (Ban, 2003; Wu et al., 2008). In Vietnam, this species has been recorded in Lao Cai, Son La, Ha Noi, Ninh Binh, Thanh Hoa, Nghe An, Khanh Hoa provinces (Vietnamese as Bời lời Ba Vì). Notably, in the present study, this plant also was added distribution area in Vietnam (Dak Nong province).

10p dianmotminh02 03-05-2024 8 3   Download

Tài liệu "Chiết xuất thực vật trong dinh dưỡng động vật: Các khái niệm tự nhiên để tối ưu hóa sức khỏe đường ruột và năng suất chăn nuôi" phần 1 trình bày các nội dung chính sau: Tinh dầu thiết yếu (essential oils) - sinh hóa học, sự sản xuất và sự ứng dụng Á, Mathé; Chất bổ sung chiết xuất thực vật đối với gà và heo con: Cơ chế và ứng dụng W. Windisch, E. Rohrer, K. Schedle; Ảnh hưởng của chất chiết thực vật trên hệ miễn dịch của gia súc, gia cầm T. J. Applegate;... Mời các bạn cùng tham khảo để nắm nội dung chi tiết.

128p vicharlie 23-03-2023 15 4   Download

Thermostable and highly water-soluble polymers are essential for polymer flooding — one of the most effective methods used in the enhanced oil recovery (EOR) in hightemperature (HT) offshore reservoirs. In this research, the copolymerization reaction of acrylamide (AM) and N-vinylpyrrolidone (NVP) monomers were performed via a freeradical mechanism induced by gamma-rays (γ-rays) irradiation.

79p viabigailjohnson 10-06-2022 13 3   Download

The essential oils from the needles and branch of the Abies delaveyi subsp. fansipanensis was collected in Hoang Lien Natural Park, Lao Cai province and was obtained by steam distilation and the yields of essential oils were 0.27% and 0.08% from air-dry material. By the using GC/MS analysis, there are 44 and 52 constituents from needles and branch were identified and accounting 97.75% and 96.86% essential oil.

6p meyerowitz 25-12-2021 31 2   Download

Researching objectives: Describing some biological characteristics and distribution of Zingiber and Hedychium species from north-central Vietnam; determining the essential oil chemical composition; antimicrobial and antimosquito larvae activities of essential oils of some Zingiber and Hedychium species from north-central Vietnam.

27p beloveinhouse01 15-08-2021 28 5   Download

By reviewing worldwide literature, this paper aimed to systematically collate available information about the species Cunninghamia lanceolata. Based on the findings of the review, including the species’ floral characteristics; updated distribution; historical knowledge and heritage; growth and factors influencing its forests; soil nutrition and microbes; carbon storage; wood; and chemicals and essential oils, we have identified issues for consideration regarding the use of this species for big timber production in Vietnam.

11p chauchaungayxua12 09-07-2021 8 1   Download

The research objectives of the thesis: Isolate and determine the chemical structure of compounds from C. candicans and C. macrophylla species collected in Vietnam. Assessment of toxic activity on some cancer cell lines: liver (Hep-G2), lung (Lu-1) and breast (MCF-7) of isolated clean compounds. Researching the chemical composition of C. candicans and C. macrophylla essential oils

29p extraenglish 24-05-2021 16 4   Download

Objectives: Assess the diversity of essential oil-bearing plants and the chemical composition of essential oils extracted from some oil-bearing species in Vu Quang National Park, Ha Tinh province

28p prisonbreak123 21-05-2021 24 3   Download

Researching objectives: Evaluating the diversity and using values of essential oil plants at Ben En National Park, Thanh Hoa province; determining the content and composition of essential oils of some plant species; determinating the anti-mosquito and anti-microbial activities of essential oils of Zingiber zerumbet (L.) Smith.

27p capheviahe27 23-02-2021 29 3   Download

Isolate and determine the chemical structure of compounds from C. candicans and C. macrophylla species collected in Vietnam; assessment of toxic activity on some cancer cell lines: liver (Hep-G2), lung (Lu-1) and breast (MCF-7) of isolated clean compounds, researching the chemical composition of C. candicans and C. macrophylla essential oils.

29p capheviahe26 25-01-2021 32 3   Download

To identify species, biological traits, chemical composition, and bioactive activities of essential oil and to develop propagation technical process using tissue culture techniques from shoot bud cutting to contribute to the conservation and development of genetic sources of native ginger plants in Bac Kan.

27p trinhthamhodang7 31-08-2020 45 2   Download

The present study was conducted to evaluate the shelf- life of paneer wrapped with oregano essential oil treated starch and carboxymethyl cellulose (CMC) based edible packaging film. The edible film was prepared by adding starch (5g), carboxymethyl cellulose (15 % W/W starch) in distilled water (100mL) and glycerol (40ml/100g starch). Physicochemical, microbiological and sensory properties at (4±1°C) till spoilage was evaluated for paneer samples.

9p nguaconbaynhay7 15-08-2020 22 1   Download

In this study, the antimicrobial activity and phytochemical constituents of neem leaves and lemon grass oil extracts were evaluated. Oil extracts of neem leaves and lemon grass were obtained by solvent extraction method using hexane and ethanol.

8p lucastanguyen 01-06-2020 39 4   Download