• Natural Product Sciences
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• 제15권2호
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• pp.66-70
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• 2009

Phytochemical investigation of the aerial parts of Conyza discoridis (L.) Desf. resulted in the isolation of the new sesquiterpene dilactone ester vernomenin-6-(2-hydroxymethyl)-acrylate (4) and two known sesquiterpene dilactones vernolepin (1) and vernomenin (3). Two known flavonols, 3-O-methylquercetin (2) and transilin (3-O-methylquercetin 7-O-${\beta}$-D-glucopyranoside) (5), were also identified. The structures were determined utilizing physical, chemical and spectral methods.

• 약학회지
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• 제8권2호
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• pp.35-36
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• 1964

One of projects of this institute is phytochemical survey of the herb drugs in Korea for further study. A hundred and fifteen species of plants which are used currently as herb drugs in Korea were screened on the presence of alkaloids, phenolic compounds, flavonoids, chalcones, lactones, glucosides, carbohydrates, terpenoids, steroids, proteins, polypeptides, saponins, and organic acids, and the most reliable presence of alkaloids was detected by paper chromatography. In this paper, presence of alkaloids is also tabulated after screening other 50 species.

• Archives of Pharmacal Research
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• 제24권3호
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• pp.194-197
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• 2001

The phytochemical study of the aerial parts of Artemisia japonica ssp. littoricola (Asteraceae) led to the isolation of two acetylenic compounds, (3R)-dehydrofalcarinol (2) and (3R)-dehydrofalcarindiol (6), two sesquiterpenes, $1{\beta}$, $6{\alpha}$-dihydroxy-4(15)-eudesmene (5) and oplodiol (8), and four phenolic compounds, eugenol (1), vanillin (3), 3'-methoxy-4'- hydroxy-trrans-cinnamaldehyde (4) and p-hydroxyacetophenone (7). Their structures were determined by chemical and spectroscopic methods.

• 약학회지
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• 제47권1호
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• pp.10-13
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• 2003

The phytochemical study of Cacalia koraiensis Nakai (Compositae) led to the isolation of eight compounds, $\beta$-sitosterol (1), stigmasterol (2), phytol (3), $\beta$-sitosterol-3-Ο-glucopyranoside (4), adenostylol (5), campesterol (6), germacradien-4$\alpha$-ol (7), and quercetin-3-rhamnoside (8). Their structures were established by chemical and spectroscopic methods. The cytotoxicity of the isolated compounds was evaluated by SRB assay against five cultured human tumor cell lines.

• 식품기술
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• 제16권4호
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• pp.62-92
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• 2003

• 셀메드
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• 제3권3호
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• pp.19.1-19.32
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• 2013

Piper sarmentosum is a creeping herb belongs to the family of Piperaceae. It is locally known to the Malays as 'Pokok kadok' and can be found in different regions of South-East Asia including Malaysia. Ethnopharmacologically, various parts of the plant (e.g. leave, fruit and root) are widely used in Asian countries for centuries to treat different types of diseases and ailments such as hypertension, diabetes, joint aches, muscle pain, coughs, influenza, toothaches and rheumatism. Scientific findings also demonstrated different pharmacological actions of various parts of P. sarmentosum such as adulticidal, antitermite, antioxidant, antifungal, antituberclosis, antiplasmoid, antimalarial, hypoglycemia, antiinflammatory, antinoceptive, antipyretic, antibacterial, anticancer, antituberculosis, antiangiogenesis, antimicrobial, antifeedant and cytotoxic activities. Different types of phytochemical constituents have been successfully identified and isolated from various parts of P. sarmentosum. Therefore, the information related to the botany, ethnomedicinal uses, phytochemical constituents and pharmacological activities of P. sarmentosum were reviewed here.

• 셀메드
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• 제10권1호
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• pp.7.1-7.6
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• 2020

Plants produce a wide range of active principles, making them a rich source of different types of medicines. Without any knowledge of the phytoconstituents or active principles the medicinal plants itself or in the form of polyherbal formulations, were used by all society of human being from ancient times for prevention and cure of disease, but most of the traditional formulations including the formulation of Ayurveda and Unani have not been scientifically validated in order to establish the pharmacopoeial standards to improve the efficacy. Globally, the people become conscious that uses of synthetic drugs for a long period is not safe; the trend of medical society at large is looking at alternatives from natural, safe sources to combat diseases. Due to this comprehension, it has been increased the demand for plant-derived medicine, and on the other side, it is extremely important to standardize the polyherbal formulations and validate them scientifically to improve their safety and efficacy. The polyherbal Unani formulation Safuf-e-Muallif is widely used and recommended in Unani system of medicine (USM) as a spermatogenic agent, semen thickening agent, etc. to treat sexual disorders viz. premature ejaculation, nocturnal emission, etc. The study mainly deals with phytochemical screening for the detection of nature of phytoconstituents and analytical technique like High-performance thin-layer chromatography (HPTLC) for developing fingerprint of Safuf-e-Muallif revealing specific identities of the drug. The phytochemical screening and HPTLC fingerprint profile for SM reported here may be used as a reference standard for quality control purpose in future.

• Natural Product Sciences
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• 제22권1호
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• pp.60-63
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• 2016

The study is a pioneering effort to determine the mineral, nutritional, and phytochemical composition and phenolic content and to determine the free radical scavenging activity of Gigantochloa levis (Blanco) Merr, a native bamboo species (locally known as "bolo") in the Philippines. Proximate analysis showed that air-dried G. levis leaves contain 15.8% ash, 22.6% crude protein, 1.2% crude fat, 29.3% crude fiber, and 19.7% total sugar. Phytochemical tests indicated the presence of diterpenes, triterpenes, saponins, phenols, tannins, and flavonoids in both the ethanolic and aqueous leaf extracts, while phytosterols were only detected in the ethanolic extract. Folin-Ciocalteu assay determined the total phenolic content in gallic acid equivalents (GAE) to be $85.86{\pm}3.71$ and $32.32{\pm}1.01mg\;GAE/100g$ dried sample for the ethanolic and aqueous extracts, respectively. The total phenolic content in quercetin equivalents (QE) was $74.44{\pm}3.11$ and $29.43{\pm}0.85mg\;QE/100g$ dried sample for the ethanolic and aqueous extracts, respectively. The radical scavenging activity of the different solvent fractions containing varying concentrations of the extract was determined using the 2, 2-diphenyl-1-picrylhydrazyl (DPPH) assay. The ethyl acetate and 1-butanol fractions were found to have the highest radical scavenging activity. Mineral analysis via Energy Dispersive X-Ray Spectrometry (EDS) of the ash of G. levis leaves showed that Si is the major component, followed by K and Mg. These results point to the potential of G. levis leaves as a source of minerals and bioactive compounds with medicinal value.

• Journal of the Korean Wood Science and Technology
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• 제50권2호
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• pp.113-125
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• 2022

This study aimed to explore the biodiversity of chemical compounds found in the bark of Guibourtia tessmannii from Gabon, commonly called Kévazingo, and evaluate their anti-termite activity to determine their potential values as a source of development of anti-termite products that can be valued in the fields of fine chemicals and wood preservation. Extraction of G. tessmannii bark powders was carried out using the cold maceration method with trichloroethylene, acetone, ethanol, and water. Phytochemical screening made it possible to highlight groups of chemical families present in the extracts. Anti-termite activity was tested on the wild termites "Cubitermes sp" of the genus Isoptera. The yield of the extracts were 17.11% for the buttress and 13.42% for the height at 6 m. Phytochemical tests revealed that alkaloids, polyphenols, sterols, tannins, reducing compounds, flavonoids, saponins, and anthraquinones were present in the extracts. Results of anti-termite activity indicated that anti-termite activity varied with the different parts of the bark studied, extraction solvent, and concentration (50/50) and (25/75) of the extracts used. The extracts at 50/50 concentration showed a slightly better anti-termite activity compared to the 25/75 concentration. In addition, the buttress Kévazingo or buttress showed the strongest anti-termite activity for the aqueous extract with a survival rate of 0% after 2 days.

• 한국식품영양과학회지
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• 제45권4호
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• pp.569-576
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• 2016

본 연구에서는 4~6개월의 영아에게 섭식이 적합한 미음에 과채류를 첨가한 이유식을 과채류의 첨가시기를 달리한 조리방법에 따라 제조한 후 살균과정 전과 후 이유식의 색도 및 phytochemical의 함량을 비교하여 배달 이유식 조리공정에 적합한 조리방법을 탐색하고자 하였다. 이유식의 점도는 혼합 후 가열(CM 1)로 조리하였을 때 가장 낮게 나타났으며, 중간 혼합 후 가열(CM2)로 조리 후 레토르트 처리한 경우 레토르트 처리 전보다 증가하였다. 조리방법에 따른 색도 및 phytochemical 함량 측정 결과 가열 후 혼합(CM3)으로 조리하였을 경우 사과비트미음(AB)과 비타민채배미음(VP)의 붉은색과 녹색이 가장 뚜렷하였으며, 단호박양배추미음(PC)의 경우 CM 2로 조리하였을 때 노란색을 나타내는 b값이 가장 높게 나타났다. 레토르트 처리 후 3종의 이유식 모두 레토르트 처리 전보다 색도 및 phytochemical의 함량이 낮아졌으며, 이는 가열에 의하여 이유식에 존재하던 phytochemical이 파괴된 것으로 판단되었다. 항산화 활성측정 결과 3종의 이유식 모두 조리방법에 따른 DPPH 라디칼 소거능의 차이는 나지 않았으나 ABTS 라디칼 소거능에서는 조리방법 간의 차이가 나타났다. 레토르트 처리 후 AB의 항산화 활성은 낮아진 반면, PC와 VP의 경우 레토르트 처리 전과 항산화 활성의 유의적인 차이가 나타나지 않았다. 이유식을 3가지 조리방법에 따라 조리한 결과 과채류의 가열 처리 시간이 짧은 조리방법이 과채류의 색을 가장 잘 유지하고 phytochemical의 함량이 높은 것으로 나타났으나, 살균과정을 거친 후에는 조리방법 간의 차이는 나타나지 않았다. 따라서 이유식의 첨가되는 과채류 별로 조리과정을 거쳐야하는 CM 3 방법보다 공정이 단순한 CM 1 또는 CM 2가 상업용 배달 이유식의 조리공정에 적용이 적합할 것으로 판단되었다.