Herbal Science Research - agriculture

offer Artichoke extract powder

tianherb — Sun, 06 Jul 2008 22:42:08 -0700

CONTACT US NOW: Company Name: Naturalin Bio-Resources Co Ltd.ATTN: Miss.TinaE-mail: tina@naturalinbio.com MSN: tinaherb@live.cn Fax: 0086-731- 4834162http://www.naturalinbio.com PLANT ORIGINAL: Cynara scolymus L
PART USED：Leaf
SPECIFICATION: 10:1 ,2% ,5%HPLC
INDICATIONS:
Artichoke treat digestive upset, poor liver function, and a range of other ailments. Its primary use has been as a choleretic--a substance that strengthens liver function by increasing bile production, also has a centuries-old reputation as a diuretic (to increase urination). And it lower cholesterol and thus help to prevent heart disease, Artichoke can help to ease upset stomach symptoms such as nausea, bloating, abdominal pain, and vomiting. Artichoke leaf is also reputed to relieve flatulence

supply Andrographolide wxtract

tianherb — Sun, 06 Jul 2008 22:40:52 -0700

CONTACT US NOW: Company Name: Naturalin Bio-Resources Co Ltd.ATTN: Miss.Tina E-mail: tina@naturalinbio.com

Fax: 0086-731- 4834162

http://www.naturalinbio.com

Andrographolide is a labdane diterpenoid that is the main bioactive component of the medicinal plant Andrographis paniculata.[1] Andrographolide is an extremely bitter substance extracted from the stem and leaves of the andrographis paniculata. When in bloom, Andrographis exhibits small white flowers. The plant is grown for medicinal purposes in China and India. Andrographolide has been shown to be effective against certain cancers and is an effective purgative.

Use: It is a traditional drug for clearing away the heat-evil and expelling superficial evils and diminishing inflammation; very effective to upper respiratory tract infection, diarrhea

Plant source: Leaf of Andrographis paniculata(Burm.f.)Nees

Molecular formula: C₂₀H₃₀O₅

Molecular weight: 350.44

CAS: 5508-58-7

Spec.: Andrographolide: 5% 10% 30% 50% 98%

Testing method: HPLC

Heavy metal: < 10PPM

Microbe standard:

Total plate count: < 1000CFU/ g

Mold and yeast: < 100CFU/ g

Escherichia coli: Not found

Salmonella: Not found

Storage: In cool and dry place, avoid light

Useful life: 2 years.

Packing: In cardboard drum lined with two-layer non-toxic plastic bag(10 kg/drum, 25/drum) or upon client's request

supply palnt extract and botanical extract

tianherb — Sun, 06 Jul 2008 22:38:10 -0700

We are professional in Chinese Tea and Botanical Extract industry.

Naturalin Bio-resources Co., Ltd is a manufacturer, professional planning provider and supporter in Chinese tea leaf and botanical/herbal extracts business scope with 10 years experience in China. We are located in Changsha High New Technology Developing Zone, a biological high-tech enterprise with independent lmp & Exp statue specialized in botanical extracts and Chinese Teas. Our annual Chinese Tea leaf and Botanical Extracts output is 300-400 Tons with competitive products: Chinese Tea Leaf Series, Tea Extracts Series, Andrographolide extract, Articoke extract, Astragalus extract Fu tea extract, Mother wort extract, Mulberry leaf extract, Oliver leaf extract, Aloe vera extract, Billbery extract, Bitter melon extract, Chamomle extract, Saw palmetto extract, St. john wort extract, Tribulus Terrestrisa extract, Yohimbine extract,Grape Seed and Skin Extract, Ginkgo Biloba Extract, Ginger Root Extact, Rhodiola P. E, Red Clover Extract, etc.

contact : tina@naturalinbio.com

Antioxidant activity relates to plant part, life form and growing condition in some diabetes remedies.

Site Editor — Wed, 30 May 2007 01:16:24 -0700

Antioxidant activity relates to plant part, life form and growing condition in some diabetes remedies.: J Ethnopharmacol. 2007 Apr 24; Authors: McCune LM, Johns T

Selection, collection and preparation of 35 plant species used by traditional healers in the boreal regions of Canada for treatment of the symptoms of diabetes were supported empirically by antioxidant activity of the plants. Because antioxidants fluctuate with growth parameters and environmental factors, these remedies were evaluated in relation to the affect of plant part, life form and growing condition on the level of activity. The parts used here more frequently as medicines were roots and bark. Activity (IC(50)) of the bark extracts used medicinally averaged to 21.38+/-3.84ppm while root extracts used medicinally had an IC(50) of 185.11+/-32.18ppm in a free radical DPPH assay. In contrast the analysis of extracts of overall parts (medicinal or not) in these species found leaves and bark to have the least activity (112.22+/-30.63ppm and 123.02+/-21.13ppm, respectively). The highest activity was found in tree extracts (24.88+/-3.32ppm) as compared to herbs and shrubs, and increased activity was found in plant extracts from growing conditions of decreased water/fertility. The antioxidant activity of these traditional plant remedies have the potential to be partially deduced through environment signals interpreted by the traditional herbalist.

...[S]eed source, light during germination, and cold-moist stratification on seed germination in three species of Echinacea...

Site Editor — Sat, 20 Jan 2007 17:07:51 -0800

The effect of seed source, light during germination, and cold-moist stratification on seed germination in three species of Echinacea for organic production.: HortScience. 2005 Oct; 40(6): 1751-1754 Authors: Romero FR, Delate K, Hannapel DJ

Organic production of one of the most popular botanical supplements, Echinacea, continues to expand in the U.S. Echinacea seeds typically show a high degree of dormancy that can be broken by ethephon or gibberelic acid (GA), but these methods are currently disallowed in organic production. In order to determine the efficacy of non-chemical seed treatments, we evaluated the effect of varying seed source and supplying light, with and without cold-moist stratification, on seed germination of the three most important medicinal species of Echinacea, E. angustifolia DC, E. purpurea (L) Moench, and E. pallida (Nutt.) Nutt. Treatments included cold-moist stratification under 24 h light, 24 h dark, and 16/8 h light/dark to break seed dormancy. We found that germination was greater in the E. purpurea and E. pallida seeds from a commercial organic seed source compared to a public germplasm source. When seeds were not cold-moist stratified, 16-24 h light increased germination in E. angustifolia only. Echinacea angustifolia, E. purpurea, and E. pallida seeds that were cold-moist stratified under 16-24 h of light for 4 wk had a significantly greater percentage and rate of germination compared to seeds germinated in the dark. Therefore, cold-moist stratification under light conditions is recommended as a method to break seed dormancy and increase germination rates in organic production of Echinacea.

[Study on the comparison of polysaccharides in Ginkgo biloba leaves]

Site Editor — Fri, 19 Jan 2007 19:11:13 -0800

[Study on the comparison of polysaccharides in Ginkgo biloba leaves]: Zhong Yao Cai. 2006 Nov;29(11):1139-41 Authors: Chen HS, Ren L, Xu AH, Lu P

OBJECTIVE: To determine the suitable tree's age, tree's sex and gathering seasons for Ginkgo biloba leaves. METHODS: The twelve different polysaccharides were obtained by extracting and precipitating from Ginkgo biloba leaves and to see if there were differences among them. The concentration of Ginkgo biloba leaf polysaccharides with the highest gain ratio will be determined by HPLC. RESULT: The average gain ratio of Ginkgo biloba leaf polysaccharides was 4.29%, among them the gain ratio of 10-years old female Ginkgo biloba leaf collected in the last ten days of September was the highests, its polysaccharides concentration was 61.5% with RSD = 2.5% (n = 6). CONCLUSIOn: The gain ratios were different in different Ginkgo biloba leaves and the changing rules provide scientific basis for the GAP of medicinal plants.

Health effects of exposure to herb dust in valerian growing farmers.

Site Editor — Fri, 09 Jun 2006 07:16:52 -0700

Health effects of exposure to herb dust in valerian growing farmers.: Ann Agric Environ Med. 2005;12(2):247-52 Authors: Skorska C, Golec M, Mackiewicz B, Gora A, Dutkiewicz J

The aim of the present study was to determine the health status of farmers cultivating valerian (Valeriana officinalis L.) and occupationally exposed to dust from this plant. A group of 75 valerian growing farmers were examined. As a reference group, 50 urban dwellers, not exposed to any kind of organic dust were examined. All people were interviewed for the presence of work-related symptoms and subjected to physical and spirometric examinations. Skin prick tests were conducted with 4 microbial antigens associated with organic dust and 3 herbal extracts, precipitin tests with 12 microbial antigens and 4 herbal extracts and tests for specific inhibition of leukocyte migration with 4 microbial antigens. 30.7 % of the valerian farmers reported occurrence of work-related symptoms. No significant differences were found between the spirometric values in the group of valerian farmers and the reference group. Valerian farmers showed a low frequency of positive skin reactions to all tested antigens (0-4.0 %), not significantly greater compared to reference group. The frequency of positive precipitin reactions to the antigen of Gram-negative bacterium Pantoea agglomerans was very high in valerian farmers (45.5 %) with 3-fold concentrated sera and significantly greater compared to the reference group (p < 0.001). The positive precipitin response of valerian farmers to other microbial and herbal antigens was much lower or absent and did not show any difference compared to reference group. In the test for specific inhibition of leukocyte migration, the highest frequencies of positive reactions in valerian farmers were noted with Pantoea agglomerans and Saccharopolyspora rectivirgula (15.0 % each), in both cases significantly greater compared to reference group (p < 0.05). In conclusion, the farmers growing valerian showed a moderate frequency of work-related symptoms and low reactivity to most microbial and herbal allergens. They exhibited an increased immunologic response to Gram-negative bacterium Pantoea agglomerans which appears to be the most important risk factor associated with valerian dust.

Biofumigation: environmental impacts on the biological activity of diverse pure and plant-derived isothiocyanates.

Site Editor — Fri, 09 Jun 2006 04:33:47 -0700

Biofumigation: environmental impacts on the biological activity of diverse pure and plant-derived isothiocyanates.: Pest Manag Sci. 2005 Nov;61(11):1043-51 Authors: Matthiessen JN, Shackleton MA

Four pure isothiocyanates (methyl, 2-propenyl, benzyl and 2-phenylethyl isothiocyanate), hydrolysing tissue of two brassicas rich in either 2-propenyl or 2-phenylethyl isothiocyanate, and the methyl isothiocyanate-generating pesticide metam-sodium were tested in vapour exposure tests for biological activity against a model soil insect both in vitro and in the presence of three contrasting soils and under four temperatures from 5 to 20 degrees C. The purpose was to develop an understanding of the factors controlling isothiocyanate release and maintenance in soil in order to identify advantageous attributes to seek in utilising brassicas for isothiocyanate-based biofumigation. Methyl isothiocyanate, structurally the simplest and the most volatile, was the most biologically active isothiocyanate under all conditions. It was less affected by the presence of soil and by lower temperature than the longer-chain aliphatic 2-propenyl isothiocyanate. The activity of the less volatile aromatic isothiocyanates was reduced much more by soil, with a decline up to many thousand-fold in the presence of soil with high organic matter content at lower temperature. Metam-sodium closely reflected the methyl isothiocyanate results. The results indicate that brassicas rich in aliphatic isothiocyanates are more likely to have the potential to exert stronger isothiocyanate-based biofumigation effects than those similarly rich in aromatic isothiocyanates.

Ovipositional deterrent in the sweet pepper, Capsicum annuum, at the mature stage against Liriomyza trifolii (Burgess).

Site Editor — Fri, 09 Jun 2006 04:28:10 -0700

Ovipositional deterrent in the sweet pepper, Capsicum annuum, at the mature stage against Liriomyza trifolii (Burgess).: Biosci Biotechnol Biochem. 2005 Oct;69(10):1831-5 Authors: Kashiwagi T, Horibata Y, Mekuria DB, Tebayashi SI, Kim CS

Liriomyza trifolii (Burgess), the American serpentine leafminer fly, is well known as a serious pest throughout the world. This insect attack over 21 different plant families including solanaceae plants. The mature sweet pepper, Capsicum annuum (Solanaceae), however, shows resistance to this leafminer fly. This resistance is based on the ovipositional deterrent in the sweet pepper leaf against the fly species. Based on bioassay-guided fractionation, luteolin 7-O-beta-D-apiofuranosyl-(1-->2)-beta-D-glucopyranoside was isolated and identified as the ovipositional deterrent against this insect species. This compound completely deterred L. trifolii females from laying their eggs on a host plant leaf treated at 4.90 microg/cm2.

Isoflavone levels in red clover (Trifolium pratense L.) leaves with disturbed root nodulation in response to waterlogging.

Site Editor — Fri, 09 Jun 2006 03:41:59 -0700

Changed isoflavone levels in red clover (Trifolium pratense L.) leaves with disturbed root nodulation in response to waterlogging.: J Chem Ecol. 2005 Jun;31(6):1285-98 >Authors: De Rijke E, Aardenburg L, Van Dijk J, Ariese F, Ernst WH, Gooijer C, Brinkman UA

The effect of disturbed root nodulation on the quantitative and qualitative composition of the main isoflavonoid glucoside malonates, glucosides, and aglycones in the leaves of Trifolium pratense L. grown under waterlogging conditions was investigated. Isoflavonoids are involved in the regulation of root nodule activity and the establishment of the mycorrhizal association. Isoflavonoid determination was performed using reversed-phase liquid chromatography coupled to mass spectrometric and UV absorbance detection. In response to waterlogging, the concentrations of biochanin A and biochanin A-7-O-glucoside malonate, biochanin A-7-O-glucoside, and genistein-7-O-glucoside in the leaves increased two- to threefold after a lag period of 3 wk because of disturbed root nodulation. The other isoflavones detected formononetin, formononetin-7-O-glucoside malonate, and formononetin-7-O-glucoside-did not show any significant changes related to waterlogging. After restoring normal soil water conditions, the concentrations of biochanin A and its glucoside and glucoside-malonate rapidly returned to the initial values, whereas the concentration of genistein-7-O-glucoside remained high.

Botanical insecticides, deterrents, and repellents in modern agriculture and an increasingly regulated world.

Site Editor — Fri, 09 Jun 2006 03:21:26 -0700

BOTANICAL INSECTICIDES, DETERRENTS, AND REPELLENTS IN MODERN AGRICULTURE AND AN INCREASINGLY REGULATED WORLD.: Annu Rev Entomol. 2006 Jan 7;51:45-66 Authors: Isman MB

Botanical insecticides have long been touted as attractive alternatives to synthetic chemical insecticides for pest management because botanicals reputedly pose little threat to the environment or to human health. The body of scientific literature documenting bioactivity of plant derivatives to arthropod pests continues to expand, yet only a handful of botanicals are currently used in agriculture in the industrialized world, and there are few prospects for commercial development of new botanical products. Pyrethrum and neem are well established commercially, pesticides based on plant essential oils have recently entered the marketplace, and the use of rotenone appears to be waning. A number of plant substances have been considered for use as insect antifeedants or repellents, but apart from some natural mosquito repellents, little commercial success has ensued for plant substances that modify arthropod behavior. Several factors appear to limit the success of botanicals, most notably regulatory barriers and the availability of competing products (newer synthetics, fermentation products, microbials) that are cost-effective and relatively safe compared with their predecessors. In the context of agricultural pest management, botanical insecticides are best suited for use in organic food production in industrialized countries but can play a much greater role in the production and postharvest protection of food in developing countries.