• Natural Product Sciences
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• 제9권3호
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• pp.195-199
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• 2003

The ethanolic (50% v/v) extracts of Peristrophe bicalyculata Nees. (Acanthaceae) were examined for anti-inflammatory and analgesic activities in experimental animals. P. bicalyculata in doses of 50, 100 and 200 mg/kg caused a dose dependent inhibition of swelling caused by carrageenin equivalent to 12.25-24.49% protection and 16.62-39.44% in cotton pellet induced granuloma in rats. There was a significant increase in the tail-flick reaction time in mice (18.05-76.43% protection) and analgesy-meter induced pain in rats (14.49-56.85%) protection). The extract of P. bicalyculata resulted in an inhibition of stretching episodes and the protection range of 14.49-56.85% respectively in acetic acid induced writhing.

• The Plant Pathology Journal
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• 제29권1호
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• pp.1-9
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• 2013

Plants are attacked by various phytopathogenic fungi. For many years, synthetic fungicides have been used to control plant diseases. Although synthetic fungicides are highly effective, their repeated use has led to problems such as environmental pollution, development of resistance, and residual toxicity. This has prompted intensive research on the development of biopesticides, including botanical fungicides. To date, relatively few botanical fungicides have been registered and commercialized. However, many scientists have reported isolation and characterization of a variety of antifungal plant derivatives. Here, we present a survey of a wide range of reported plant-derived antifungal metabolites.

• KIEAE Journal
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• 제14권3호
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• pp.47-54
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• 2014

This study is performed to establish the basis of the development of unique tropical botanical garden that will be connected with the identity of the local inheritance resources, 'Silla'. The glasshouse is the traditional 'Silla; housing and the landscape facilities are tried to imagine 'Silla' kingdom. Combination of the plant exhibition and the cultural inheritance resources can create their own unique theme. The garden divided into five spaces by life cycles of plants and the purpose of appreciation, the palm garden, ornamental foliage garden, flower garden, water lily garden, and tropical fruits garden. The appropriate flowers and trees are selected by their flowering time and the purpose of enjoyment. Especially, Ficus religiosa is the symbol plant of buddhism which is the state religion of 'Silla'.

• Natural Product Sciences
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• 제13권2호
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• pp.97-100
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• 2007

The present study includes macro and microscopical details, powder study, physico-chemical study and HPTLC fingerprinting of the Piper longum fruits. Microscopic studies revealed the presence of stone cells, starch grains and thin walled fragments of parenchymatous cells. Physico-chemical studies showed alcohol and ether soluble extract 24.53 and 6.7, sugar 0.35, starch 21.33 and tannin 0.83% respectively. Successive soxhlet extract showed maximum percentage of hexane soluble fraction i.e. 22.52. The HPTLC profile has also been performed against the reference marker pipeline, which was identified at R$_f$ 0.42. In the present paper a detailed pharmacognostical evaluation of fruit has been undertaken.

• 생약학회지
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• 제24권3호
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• pp.251-254
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• 1993

The anthocyanin isolated from the petals of Erythronium japonicum was elucidated as delphinidin 3-rutinoside on the basis of PPC and UV spectral evidences. To evaluate phytochemical and botanical utilization of this plant, the quantitative analysis of anthocyanin content was carried out by using the visible absorption spectra at 540nm. By the results of our experiment, it was found that the anthocyanin content of petals collected from the summit of Mt. Odae are higher than that of the lowest region. However, there is no significant difference between the anthocyanin contents of the petals collected from the east- and west-side area of the mountain.

• The Plant Pathology Journal
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• 제38권2호
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• pp.53-77
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• 2022

The global nematicides market is expected to continue growing. With an increasing demand for synthetic chemical-free organic foods, botanical nematicides are taking the lead as replacements. Consequently, in the recent years, there have been vigorous efforts towards identification of the active secondary metabolites from various plants. These include mostly glucosinolates and their hydrolysis products such as isothiocyanates; flavonoids, alkaloids, limonoids, quassinoids, saponins, and the more recently probed essential oils, among others. And despite their overwhelming potential, variabilities in quality, efficacy, potency and composition continue to persist, and commercialization of new botanical nematicides is still lagging. Herein, we have reviewed the history of botanical nematicides and regional progresses, the potency of the identified phytochemicals from the key important plant families, and deciphered some of the impediments involved in standardization of the active compounds in addition to the concerns over the safety of the purified compounds to non-target microbial communities.

• 한국환경생태학회:학술대회논문집
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• 한국환경생태학회 2000년도 정기총회 및 학술논문 발표회
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• pp.109-111
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• 2000

• Natural Product Sciences
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• 제11권1호
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• pp.22-26
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• 2005

Hygrophila auriculata (K. Schum.) Heine is a wild herb commonly found in moist places on the banks of tanks, ditches and paddy fields throughout India and is one of the main sources of Ayurvedic 'Rasayana' drug. The free radical scavenging potential of 50% aqueous alcoholic extract of H. auriculata (HAEt) was studied for DPPH scavenging activity, nitric oxide, hydroxyl radical and ferryl bipyridyl complex scavenging activity along with lipid peroxidation and total antioxidant capacity inhibition using Thiobarbituric acid reactive substances (TBARS) in rat liver homogenate. Integral antioxidative capacity was determined by photochemiluminescence assay. HAEt showed good radical scavenging activity at various concentrations $(200-1000\;{\mu}g/ml)$ against 1,1 diphenyl, 2-picrylhydrazyl (DPPH) (32.32-77.02%) with moderate scavenging activity against Nitric oxide (12.46-52.84%), hydroxyl radical (11.69-55.26%), ferryl bipyridyl complex (17.66-58.67%) and lipid peroxidation (0.829-0.416nmoles/mg protein). The above results indicate HAEt to be very effective antioxidant. It was suggested that the varied therapeutic activities claimed for the plant in the Indian indigenous systems of medicine may be in the part due to the free radical scavenging and/ or potent antioxidant activity.

• 생약학회지
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• 제45권1호
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• pp.17-22
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• 2014

Grapes has long been used for food, and reported as containing polyphenol which has antioxidant and anti-cancer effects. Neuroinflammation is chronic inflammation at the brain, lead to neurodegenerative diseases. In this study, quercetin-3-O-glucuronide (QG) isolated from the leaf of Vitis labruscana has anti-neuroinflammatory effects. QG were investigated using MTT assay, western blot, nitric oxide (NO) assay, prostaglandin $E_2$ ($PGE_2$) assay, cytokine assay in lipopolysaccharide (LPS)-induced inflammation in BV2 cells. QG dose-dependently attenuated the expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2), accordingly inhibited the production of NO and $PGE_2$. QG decreases the levels of proinflammatory cytokine such as tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$), interlukin-$1{\beta}$ (IL-$1{\beta}$). Thereby, QG may offer therapeutic potential for treatment of neurodegenerative disease related to neuroinflammation.

• Natural Product Sciences
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• 제9권2호
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• pp.68-72
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• 2003

Quercetin and its sugar conjugates are the most abundantly distributed bioflavonoids and represent the largest proportion of flavonols in the plant kingdom. The present study was undertaken to demonstrate the effect of quercetin on the role of reactive oxygen species (ROS) in the development of gastric ulcers in rats. Administration of quercetin in doses of 50, 100 and $200\;mg\;kg^{-1}$ twice daily for 5 days, showed dose dependent significant protection against ethanol (EtOH), aspirin (ASP), cold-restraint stress (CRS) and pylorus ligation (PL) -induced gastric ulcer models and the results were comparable with those elicited by sucralfate. The thiobarbituric acid reactive substances in the stomach mucosa, an index of lipid peroxidation and regulation of plasma corticosterone were significantly increased in CRS-induced gastric ulceration. The queroetin $(100\;mg\;kg^{-1})$ and reduced glutathione effectively inhibited gastric lesions induced by CRS with a significant decrease in the lipid peroxidation and plasma corticosterone. These results indicate that quercetin a bioflavonoid exerts its antiulcer effect in light of free radical scavenging and plasma corticosterone in cold restraint stress ulcers.