Chemical constituent from fruit of Aristolochia contorta

2010 ◽  
Author(s):  
XU Yuqiong
Keyword(s):  
Chemical Constituent ◽  
Aristolochia Contorta

HPLC analysis and activity to determine the effect of drying and extraction on Ficus benghalensis leaves

2020 ◽  
Vol 9 (1) ◽  
pp. 6-10
Author(s):  
Nithyakalyani K
Keyword(s):  
Extraction Method ◽  
Chemical Constituents ◽  
Extraction Procedure ◽  
Chemical Constituent ◽  
Chemical Components ◽  
Drying Method ◽  
Ultrasound Assisted Extraction ◽  
Critical Stage ◽  
Ficus Benghalensis ◽  
Assisted Extraction

Ficus benghalensis is one of those taboo plants in India, which was claimed to be possessed and have weird effects on human health. Apart from this ficus species has a great variety of chemical constituents and an abundant amount of antioxidants. Drying is the most critical stage of improving the activity or preventing the loss of chemical components from a drug. There is another stage of ensuring high chemical constituent content in the plant and that is the extraction procedure. So the point of focus in the current research is to find the effect of extraction method and drying on the anti-inflammatory potential of the plant. The result of the extraction method and drying method of the plant was investigated and found that the ultrasound-assisted extraction of the shade dried leaves was found to give the highest yield of flavonoids and activity.

Chemical constituent analysis of EtOAc fraction of Tithonia diversifolia(HEMSL.) A.Gray

2010 ◽  
Vol 30 (2) ◽  
pp. 189-192 ◽  
Author(s):  
Gui-jun ZHAO ◽  
Chong-xi ZHANG ◽  
Zhi-jun WU ◽  
Xia LI ◽  
Ying-bo YANG ◽  
...  
Keyword(s):  
Chemical Constituent ◽  
Tithonia Diversifolia ◽  
Etoac Fraction

High Protein Lines and Chemical Constituent Pricing in Soybean

jpa ◽  
1988 ◽  
Vol 1 (2) ◽  
pp. 111-115 ◽  
Author(s):  
R. C. Leffel
Keyword(s):  
Chemical Constituent ◽  
High Protein

ОНТОГЕНЕЗ ARISTOLOCHIA CONTORTA (ARISTOLOCHIACEAE) В ПРИМОРСКОМ КРАЕ, "БОТАНИЧЕСКИЙ ЖУРНАЛ"

2012 ◽  
pp. 1505-1515
Author(s):  
О.В. НАКОНЕЧНАЯ ◽  
С.В. НЕСТЕРОВА ◽  
Н.М. ВОРОНКОВА
Keyword(s):  
Aristolochia Contorta

Изучен онтогенез Aristolochia contorta (Aristolochiaceae). Выделено четыре периода развития и девять возрастных состояний. Онтогенез можно характеризовать как полный, с коротким прегенеративным и продолжительным генеративным периодом. Уточнены морфометрические параметры побегов и цветков. A. contorta — многолетняя длиннокорневищная травянистая лиана, поликарпик с летне-зелеными удлиненными вьющимися побегами, вегетативно-подвижный криптофит с корневищем двух типов: эпигеогенным и гипогеогенным. Вид размножается преимущественно вегетативно.

Ageing Inspection for Cross-Linked Polyolefin Insulation Cable in NPP Using Dielectric Property

2017 ◽  
Author(s):  
Zhang Yizhou ◽  
Wang Lei ◽  
Zhao Pengyu ◽  
Wang Liang ◽  
Gao Xuan ◽  
...  
Keyword(s):  
Dielectric Property ◽  
Frequency Domain ◽  
Nuclear Power ◽  
Chemical Constituent ◽  
Thermal Ageing ◽  
Dielectric Spectrum ◽  
Electrophysical Characteristic ◽  
Spectrum Curve ◽  
Response Method ◽  
Non Destructive

The paper use a new dielectric frequency response method to measure the cable insulation’s complex dielectric spectrum at wide frequency domain. During the experiment, Cross-linked polyolefin insulated cables are accelerate aged under thermal and irradiation environment, and measured with elongation at break, Fourier transform infrared spectrum, oxidation induced temperature, and dielectric spectrum as well, to study the property degradation rule. The result indicate that the thermal ageing mechanism is similar to irradiation ageing, of which is the degradation due to polymer molecular chain unlinking, oxidizing material increase and additives content reduce. This chemical constituent changing in insulation could not result traditional electric property change but could be monitored by dielectric loss spectrum curve among wide frequency domain, which stayed stable but shifted to lower frequency as cable degradation. Finally, the paper discussed the main mechanism of cross-linked polyolefin dielectric property changing while ageing according to the electrophysical characteristic of solid insulation, and provided some suggestions about the non-destructive techniques for nuclear power plant cables using dielectric spectrum.

scholarly journals Production of bergenin, an active chemical constituent in the callus of Bergenia ciliata (Haw.) Sternb.

2012 ◽  
Vol 8 ◽  
pp. 40-44 ◽  
Author(s):  
Umesh Krishna Shrestha ◽  
Bijaya Pant
Keyword(s):  
Leaf Explants ◽  
Chemical Constituent ◽  
Wild Plants ◽  
Plant Science ◽  
Naphthalene Acetic Acid ◽  
Active Chemical ◽  
In The Wild ◽  
The Media ◽  
Benzyl Amino Purine

In vitro culture of Bergenia ciliata (Haw.) Sternb. was carried out for the examination of bergenin content. Leaf explants were cultured in MS (Murashige and Skoog) basal media supplemented with or without phytohormones. The hormonal series maintained were in the range of 0-2 mg l-1 for BAP (6-benzyl amino purine) and 0-1.5 mg l-1 for NAA (α-naphthalene acetic acid). Bergenin content of in vitro grown tissues of B. ciliata was compared with that of wild plants collected from three different localities of Nepal. The best growth of callus and plantlets occurred in the media containing BAP 1.0 mg l-1 + NAA 1.0 mg l-1 and BAP 1.5 mg l-1 + NAA 1.0 mg l-1. Production of bergenin was high in the media supplemented with 1.0 mg l-1 BAP + 1.5 mg l-1 NAA (3.40 μg g-1) and 2.0 mg l-1 BAP + 1.5 mg l-1 NAA (3.05 μg g-1) under experimental condition. The bergenin content in the wild plants collected from Langtang, Jumla and Godawari was found to be 4.28 μg g-1, 4.53 μg g-1 and 3.64 μg g-1 respectively. This study shows that the in vitro cultured callus of B. ciliata is capable of synthesizing bergenin in quantity comparable to that of the wild plant.doi: http://dx.doi.org/10.3126/botor.v8i0.5557 Botanica Orientalis – Journal of Plant Science (2011) 8: 40-44

scholarly journals Estimation of Amarogentin content and standardization of different samples of Chirata collected from crude drug markets of Nepal

2021 ◽  
Vol 2 (1) ◽  
pp. 1-11
Author(s):  
Bishun Dayal Prasad Patel ◽  
Shyam Babu Yadav ◽  
Shiv Mangal Prasad ◽  
Kanti Shrestha ◽  
Narendranath Tiwari ◽  
...  
Keyword(s):  
Moisture Content ◽  
Chemical Constituent ◽  
Local Market ◽  
Foreign Matter ◽  
Swertia Chirayita ◽  
Bitter Principle ◽  
Main Indicator ◽  
Pharmaceutical Industries ◽  
Major Chemical ◽  
Over Exploitation

Background: Amarogentin is a major chemical constituent of bitter principle found in Swertia chirayita (Roxb.ex Fleming) Karsten; family Gentianaceae. Chirata is an endangered species because of it’s over exploitation for pharmaceutical industries. These species are mainly found in the Himalayas and used for gastritis, diabetes, jaundice, urinary disorders, liver disorders, etc. The bitter principle as a main indicator of the medical herb, Nowadays, other species of Swertia are substituted and traded by the name of Chirata. Therefore, the present study was undertaken to estimate Amarogentin and to standardize Chirata samples collected from different markets of Nepal in 2013 A.D. Method and Materials: Different market samples of the species were analyzed for foreign matter, moisture content, extractive values; and bitter principles i.e. Amarogentin by using UFLC at Pacific Analytical Laboratory and Training Center, Lalitpur, Nepal. Result: The findings revealed that foreign matter, moisture content, extractive values; and bitter principles i.e. Amarogentin content varied with different market samples. Methonolic extraction yielded higher percentage of extracts than that of chloroform extraction. Samples including more root and stem, in general, contained higher Amarogentin than samples containing more leaves. The samples containing higher moisture content were lesser in Amarogentin content. The finding of Amarogentin of sample collected from Charikot, Dolkha was 3mg/100gm.Conclusion: In this study, the findings suggest that sample collected from local market of Charikot, Dolkha district was Swertia chirayita and was the best quality.

scholarly journals Karakterisasi Minyak Atsiri dari Simplisia Basah Ranting dan Daun sebagai Alternatif Subtitusi Kulit Batang Cinnamomum burmannii Blume

2018 ◽  
pp. 125-136
Author(s):  
Mery Budiarti ◽  
Wahyu Jokopriambodo ◽  
Ani Isnawati
Keyword(s):  
Refractive Index ◽  
Essential Oil ◽  
Chemical Constituent ◽  
Raw Material ◽  
Alternative Source ◽  
Water Distillation ◽  
Marker Compound ◽  
Cinnamomum Burmannii ◽  
Main Component ◽  
Material Scarcity

The bark of Cinnamomum burmannii Blume is the main raw material of Cinnamomum oil because its cinnamaldehyde content is higher than in the other parts. This condition lead to the exploitation of Cinnamomum burmannii Blume bark without any cultivation effort, thus it can cause the raw material scarcity. Twigs and leaves of Cinnamomum burmannii Blume are also known to contain cinnamaldehyde therefore it provide a potential alternative source of cinnamaldehyde. The purpose of this research is to investigate the characteristic of Cinnamomum burmannii Blume essential oil which includes refractive index, profiling of chemical constituent and percentage of cinnamaldehyde as a marker compound. This research used three fresh Cinnamomum burmannii Blume simplicia of bark, twigs and leaves from two selected growing locations: Tawangmangu and Purwokerto. Simple water distillation method was conducted, together with characterization and refractive index using refractometer, followed by qualitative and quantitative analysis with Thin Layer Chromatography (TLC) and Gas Chromatography (GC). The results showed Cinnamomum burmannii Blume oil derived from bark, twig and leaf have different profiles, but all have cinnamaldehyde as the main component. The leaf produces higher essential oil yield percentage compared to the twig with a cinnamaldehyde content that is comparable to the bark by 50% of cinnamaldehyde content in cinnamomum bark oil.

Investigating the chemical constituent and the suppressive effects of alliin hydrolysate on E.coli

2017 ◽  
Vol 31 (23) ◽  
pp. 2814-2817
Author(s):  
Tao Wu ◽  
Ning Chen ◽  
Chang Liu ◽  
Rui Liu ◽  
Jiaojiao Zhang ◽  
...  
Keyword(s):  
Chemical Constituent
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