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Journal articles on the topic 'Hydrolysis of triterpene'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

K., S. Mukherjee, Brahmachari G., Chatterjee D., and Mukherjee P. "Triterpene from Adiantum lunulactum." Journal of Indian Chemical Societ Vol. 78, May 2001 (2001): 267–68. https://doi.org/10.5281/zenodo.5878466.

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Department of Chemistry, Visva-Bharati, Santiniketan-731 235, India <em>Manuscript received 19 January 2000, revised 21 December 2000, accepted 26 December 2000</em> The petrol extract of the whole plants of<em> Adiantum lunulactum</em> has yielded a new hopane triterpene. 3β-acetoxyl-21<em>α</em>-<em>H-</em>hop-22(29)ene.

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2

Oleszek, Wiesław, Marian Jurzysta, Stanisław Burda, and Michał Płoszyński. "Triterpene saponins of Trigonella monspeliaca L." Acta Societatis Botanicorum Poloniae 56, no. 2 (2014): 281–85. http://dx.doi.org/10.5586/asbp.1987.027.

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The triterpene saponin fraction was isolated from <em>Trigonella monspeliaca</em> tops. It consisted of ten saponosides, three of which were determined to be medicagenic acid glycosides, the other seven - soyasapogenol glucosides. Acid hydrolysis of the saponin fraction yielded medicagenic acid, soyasapogenol B and its artifacts soyasapogenol C, D and F. These data consitute the first report on the occurence of medicagenic acid and soyasapogenol glycosides in the genus <em>Trigonella</em>.

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3

Reina, Robert J., Kevin D. White, and Edwin G. E. Jahngen. "Validated Method for Quantitation and Identification of 4,4-Desmethylsterols and Triterpene Diols in Plant Oils by Thin-Layer Chromatography–High Resolution Gas Chromatography–Mass Spectrometry." Journal of AOAC INTERNATIONAL 80, no. 6 (1997): 1272–80. http://dx.doi.org/10.1093/jaoac/80.6.1272.

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Abstract Alkaline hydrolysis was performed on a series of different vegetable oils. The unsaponifiable lipid matter was extracted with ethyl ether, and the class of 4,4-desmethylsterols (sterols) plus the triterpene diols (diols) erythrodiol, uvaol, and betulinol were isolated by thin-layer chromatography. A validated method using the acetate derivatives of sterols instead of their silyl ethers is presented. The acetate derivatives were analyzed by high resolution gas chromatography (HRGC). Retention time, precision, recovery studies, and absolute response factors were calculated for these est

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Kwon, Jaeyoung, Keebeom Ko, Lijun Zhang, Dong Zhao, Hyun Ok Yang, and Hak Cheol Kwon. "An Autophagy Inducing Triterpene Saponin Derived from Aster koraiensis." Molecules 24, no. 24 (2019): 4489. http://dx.doi.org/10.3390/molecules24244489.

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Autophagy is an important self-degradative mechanism that plays a key role in treating neurodegeneration diseases. This research aimed at discovering bioactive compounds from Aster koraiensis. A new triterpene saponin, astersaponin I (1), was isolated from the EtOH extract of A. koraiensis. The structure of 1 was characterized by spectroscopic methods, ECD calculation, and acid hydrolysis. The biochemical analysis showed that compound 1 significantly increased the expression of microtubule-associated protein 1A/1B light chain 3B (LC3-II) expression in SH-SY5Y cells, which indicates the inducti

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5

Ying, Q. L., A. R. Rinehart, S. R. Simon, and J. C. Cheronis. "Inhibition of human leucocyte elastase by ursolic acid. Evidence for a binding site for pentacyclic triterpenes." Biochemical Journal 277, no. 2 (1991): 521–26. http://dx.doi.org/10.1042/bj2770521.

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Several pentacyclic triterpenoid metabolites of plant origin are inhibitors of hydrolysis of both synthetic peptide substrates and elastin by human leucocyte elastase (HLE). Ursolic acid, the most potent of these compounds, has an inhibition constant of 4-6 microM for hydrolysis of peptide substrates in phosphate-buffered saline. With tripeptide and tetrapeptide substrates, the inhibition is purely competitive, whereas with a shorter dipeptide substrate the inhibition is non-competitive, suggesting that ursolic acid interacts with subsite S3 of the extended substrate-binding domain in HLE, but

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Kuroda, Minpei, Takaaki Shizume, and Yoshihiro Mimaki. "New Acylated Triterpene Glycosides from the Roots of Polygala tenuifolia." Natural Product Communications 9, no. 3 (2014): 1934578X1400900. http://dx.doi.org/10.1177/1934578x1400900326.

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Two new and five known acylated triterpene glycosides were isolated from the MeOH extract of the roots of Polygala tenuifolia. Based on extensive spectroscopic analysis, including 2D NMR experiments, and the results of alkaline hydrolysis, the structures of the new compounds were assigned as 3β-[(β-D-glucopyranosyl)oxy]–2β,27-dihydroxyolean-12-ene-23,28-dioic acid 28- O-β-D-apiofuranosyl-(1→3)-[β-D-galactopyranosyl-(1→4)-β-D-xylopyranosyl-(1→4)]-α-L-rhamnopyranosyl-(1→2)-3- O-( E)-3,4,5-trimethoxycinnamoyl-β-D-fucopyranosyl ester (1) and 3β-[(β-D-glucopyranosyl)oxy]–2β,27-dihydroxyolean-12-ene

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7

Konuspayev, Saparkali, Batiha Kassenova, Zauresh Akhatova, and Roza Nurbaeva. "Alkaline hydrolysis of wool fat (lanolin) in a medium of proton and aprotic solvents." Chemical Bulletin of Kazakh National University, no. 1 (March 30, 2018): 4–9. http://dx.doi.org/10.15328/cb978.

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The raw material being studied is the woolen fat of the sheep of the Edilbay fine-fleece and Kazakh arkharomeric fine-fleece, which is excreted when washing wool in primary wool processing plants (PWP) in the regions of Kazakhstan, such as Semipalatinsk, Aktyubinsk, Zhambyl and Tokmak. Earlier we obtained anhydrous lanolin from the fat of various factories of the PWP. In both cases, positive results were obtained and a certificate of compliance of anhydrous lanolin FS RK was obtained. In terms of its chemical composition, wool fat is a mixture of C10-C16 carboxylic acid esters with aliphatic,

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8

Astudillo, Luis, Margarita Gutiérrez, Luisa Quesada, Aurelio San-Martín, Luis Espinoza, and Patricio Peñailillo. "New Diterpenes from Azorella spinosa." Natural Product Communications 9, no. 1 (2014): 1934578X1400900. http://dx.doi.org/10.1177/1934578x1400900104.

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Two new diterpenes,2-acetoxy-13-hydroxy-mulin-11-ene and 2-acetoxy-mulin-11, 13-diene, have been isolated from the aerial parts of Azorella spinosa and their structures determined by spectroscopic and conventional chemical methods. Furthermore, 2, 13-dihydroxy-mulin-11-ene was obtained using a basic hydrolysis of the first compound. Two diterpenes reported for other Azorella species have also been found, namely mulinolic acid and 13β-hydroxyazorellane, as well as the triterpene lactone of ursolic acid, quercetin, and 7-hydroxycoumarin. The compounds were evaluated using antibacterial, antioxid

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9

Yokosuka, Akihito, Tomoki Iguchi, Maki Jitsuno, and Yoshihiro Mimaki. "Structure and Cytotoxicity of Novel Lignans and Lignan Glycosides from the Aerial Parts of Larrea tridentata." Molecules 26, no. 20 (2021): 6186. http://dx.doi.org/10.3390/molecules26206186.

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Previously, the authors conducted phytochemical investigations of the aerial parts of Larrea tridentata and reported triterpene glycosides and lignan derivatives. In continuation of the preceding studies, 17 lignans and lignan glycosides (1–17) were isolated, including seven new compounds (1–7). Herein, the structure of the new compounds was determined based on spectroscopic analysis and enzymatic hydrolysis. The cytotoxicity of 1–17 against HL-60 human promyelocytic leukemia cells was examined. Compounds 4–11 and 14–16 were cytotoxic to HL-60 cells, with IC50 values in the range of 2.7–17 μM.

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10

Nguyen, Hoang Sa, Ha Thanh Nguyen, Van Loc Tran, et al. "Synthesis of hybrid compounds of 24-nor-lupane triterpene and amino acids via C-28 amide linkage." Hue University Journal of Science: Natural Science 132, no. 1B (2023): 43–47. http://dx.doi.org/10.26459/hueunijns.v132i1b.6810.

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Betulinic acid derivatives exhibit different biological activity against diversified targets, such as anticarcinogenic activity in experimental animals, anti-HIV, antihyperglycemia, and anti-inflammatory in humans. In this work, we investigated the synthetic procedure of 24-nor-3-oxo-20(29)-lupen-28-oic acid (1) derivatives. Starting from compound 1 and L-leucine methyl ester, we proceeded with amidification, reduction, and hydrolysis under basic conditions. Finally, three hybrid compounds were successfully synthesised and elucidated with spectral means.

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11

T.P., KUKINA, and ELSHIN I.A. "TERPENE AND ALIPHATIC PRODUCTS OF SAPONIFICATION OF THE ETHER EXTRACT OF EUPHORBIA VIRGATA WALDST. ET KIT." Chemistry for Sustainable Development 32, no. 4 (2024): 485–91. http://dx.doi.org/10.15372/csd2024582.

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The composition of the lipophilic components of Euphorbia virgata Waldst. et Kit. has been studied. Acidic and neutral components have been identified using gas-liquid chromatography with mass spectrometric detection (GC-MS) following alkaline hydrolysis of the whole extract. The plant material was extracted with methyl tert-butyl ether (MTBE). Total acids isolated during sample preparation were analysed after methylation with diazomethane. The composition of the neutral components of unsaponifiable residue was studied without derivatisation, but after separation by column chromatography on si

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12

Chicca, A., J. Marazzi та J. Gertsch. "The antinociceptive triterpene β-amyrin inhibits 2-arachidonoylglycerol (2-AG) hydrolysis without directly targeting cannabinoid receptors". British Journal of Pharmacology 167, № 8 (2012): 1596–608. http://dx.doi.org/10.1111/j.1476-5381.2012.02059.x.

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13

A. Al-Hamoud, Gadah, Nawal M. Al-Musayeib, Musarat Amina, and Sabrin R. M. Ibrahim. "Abubidentin A, New Oleanane-type Triterpene Ester from Abutilon bidentatum and its antioxidant, cholinesterase and antimicrobial activities." PeerJ 10 (March 8, 2022): e13040. http://dx.doi.org/10.7717/peerj.13040.

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Background This work describes the phytochemical and biological investigation of aerial parts of Abutilon bidentatum Hochst. Of Saudi origin. Methodology Petroleum ether fraction of ethanolic extract A. bidentatum was fractionated on a silica gel column and further purified with different chromatographic procedures for the isolation of chemical compounds. The chemical structures of all the pure isolated compounds were elucidated by the interpretation of their spectral data using IR, UV, 1H, 13C NMR, and MS spectroscopy and chemical methods (alkaline hydrolysis) as well as comparison with data

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14

Khattab, Rafat Afifi, Mohamed Elbandy, Andrew Lawrence, et al. "Extraction, Identification and Biological Activities of Saponins in Sea Cucumber Pearsonothuria graeffei." Combinatorial Chemistry & High Throughput Screening 21, no. 3 (2018): 222–31. http://dx.doi.org/10.2174/1386207321666180212165448.

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Aims and Objectives: Secondary metabolism in marine organisms produces a diversity of biologically important natural compounds that are not present in terrestrial species. Sea cucumbers belong to the invertebrate Echinodermata and are famous for their nutraceutical, medical and food values. They are known for possession triterpenoid glycosides (saponins) with various ecological roles. The current work aimed to separate, identify and test various biological activities (antibacterial, antifungal, antileishmanial and anticancer properties) of saponins produced by the holothurian Pearsonothuria gr

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15

Wu, Xiao-Peng, Chang-Ri Han, Guang-Ying Chen, Yuan Yuan, and Jian-Ying Xie. "Cytotoxic Pentacyclic Triterpenoids from Combretum oliviforme." Natural Product Communications 5, no. 7 (2010): 1934578X1000500. http://dx.doi.org/10.1177/1934578x1000500708.

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Four pentacyclic triterpenoids were obtained from the leaves of Combretum oliviforme Chao, 3β–hydroxyolean–12–en–28–oic acid (1), 23– O–[α-L-(4′-acetylrhamnopyranosyl)]–imberbic acid (2), 23–acetoxy–3β–acetylimberbic acid–29–methyl ester (3), and 23– O–[α-L-rhamnopyranosyl]-1,3β-diacetylimberbic acid (4). Hydrolysis of 2 and 4 gave 23–hydroxyimberbic acid (5). The structures were elucidated by NMR, electrospray ionization mass spectrometry (ESIMS) and comparison with literature data. Compounds 1, 2, 3 and 4 were isolated from C. oliviforme Chao leaves for the first time and 3 for the first tim

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16

Singh, Santosh Kumar, Shweta Shrivastava, Awdhesh Kumar Mishra, et al. "Friedelin: Structure, Biosynthesis, Extraction, and Its Potential Health Impact." Molecules 28, no. 23 (2023): 7760. http://dx.doi.org/10.3390/molecules28237760.

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Pharmaceutical companies are investigating more source matrices for natural bioactive chemicals. Friedelin (friedelan-3-one) is a pentacyclic triterpene isolated from various plant species from different families as well as mosses and lichen. The fundamental compounds of these friedelane triterpenoids are abundantly found in cork tissues and leaf materials of diverse plant genera such as Celastraceae, Asteraceae, Fabaceae, and Myrtaceae. They possess many pharmacological effects, including anti-inflammatory, antioxidant, anticancer, and antimicrobial activities. Friedelin also has an anti-inse

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17

Halay, Erkan, and Süheyla Kırmızıgül. "Glycosides from Cephalaria Species." Zeitschrift für Naturforschung B 65, no. 11 (2010): 1384–92. http://dx.doi.org/10.1515/znb-2010-1115.

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Three novel triterpene glycosides (1 - 3), namely lycicoside I, II and cilicicoside I, were isolated from two different Cephalaria (Dipsacaceae) species along with one known oleanane- and one iridoit- type of glycoside. The structures of these compounds were established as 3-O-[β -D-glucopyranosyl( 1→3)-α-L-rhamnopyranosyl(1→4)-β -D-xylopyranosyl(1→4)-β -D-xylopyranosyl]-28-O-[β -Dglucopyranosyl( 1→6)-β -D-glucopyranosyl]-oleanolic acid (1), 3-O-[β -D-xylopyranosyl(1→3)-α- L-rhamnopyranosyl(1→4)-β -D-xylopyranosyl]-28-O-[β -D-glucopyranosyl]-oleanolic acid (2) from Cephalaria lycica Matthew an

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18

Petrov, Nikita, Ekaterina Ermakova, Irina Perova, Ilya Sokolov, and Sergey Zorin. "Application of assisted extraction technologies to optimize the extraction of biologically active substances from plant materials." E3S Web of Conferences 398 (2023): 01015. http://dx.doi.org/10.1051/e3sconf/202339801015.

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There is an increased interest in obtaining amaranth grain extracts enriched with biologically active substances by deep processing of raw materials with a further prospect of their use as part of specialized multi-purpose food products. The aim of this work was to evaluate the effectiveness of membrane filtration for the extraction of biologically active substances from amaranth grains. Amaranth grain extract was obtained by enzymatic hydrolysis using a proteolytic enzyme followed by membrane treatment. the developed approach made it possible to obtain an extract from amaranth grains - a sour

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19

Heise, Niels V., Jördis-Ann Schüler, Torje E. Orlamünde, et al. "Triterpenoid cholinesterase inhibitors that might improve gait disturbances in Parkinson's disease patients." Mediterranean Journal of Chemistry 12, no. 2 (2022): 188. http://dx.doi.org/10.13171/mjc02211021650csuk.

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:<strong> </strong>Parkinson's disease (PD) is the second most common neurodegenerative disease. Besides rigidity and tremor, patients often suffer from gait disturbance. Treatment with cholinesterase inhibitors (ChEI) has been shown to improve gait speed. Thus, the triterpene acids oleanolic acid and ursolic acid have been used as starting materials for the synthesis of compounds intended to act as inhibitors of the enzymes acetylcholinesterase (AChE) and butyrylcholinesterase (BChE). The parent compounds were acetylated and converted via isocyanates and amines into a series of am

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20

Morah, Ebele Joy, David Okechukwu Okeke, Ozioma Juliana Anekwe-Nwekeaku, Chidinma Malinda Muobike, and Uchechukwu Joachin Ezenyeaka. "Cellulose Nanocrystals Isolated from Bean Seed Hulls: Acetylation and Characterization." Asian Journal of Applied Chemistry Research 14, no. 4 (2023): 54–76. http://dx.doi.org/10.9734/ajacr/2023/v14i4276.

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Bean seed hulls is an agro-waste with abundant content of lignocellulosic materials but are being wasted due to its underutilization. Cellulose nanocrystals (CNCs) were successfully extracted from bean seed hulls using alkali treatment, bleaching and sulphuric acid hydrolysis. Cellulose triacetate (CTA) was obtained from CNCs by acetylation using acetic anhydride with sulphuric acid as catalyst. CNCs is neutral pH whereas CTA is slightly acidic. CNCs was sparingly soluble in ethanol but CTA was completely soluble in ethanol. CTA has a higher melting point than CNCs. The density of both CNCs an

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21

Schioppa, Laura, Fanta Fall, Sergio Ortiz, Jacques H. Poupaert, and Joelle Quetin-Leclercq. "A Validated HPLC-PDA-HRMS Method to Investigate the Biological Stability and Metabolism of Antiparasitic Triterpenic Esters." Molecules 26, no. 23 (2021): 7154. http://dx.doi.org/10.3390/molecules26237154.

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Pentacyclic triterpenes (PTs) are commonly found in medicinal plants with well-known antiparasitic effects. Previous research on C-3 and C-27 triterpenic esters showed effective and selective in vitro antiparasitic activities and in vivo effectiveness by parenteral routes. The aim of this study was to determine triterpenic esters’ stability in different biological-like media and the main microsomal degradation products. An HPLC-PDA method was developed and validated to simultaneously analyze and quantify bioactive triterpenic esters in methanol (LOQ: 2.5 and 1.25–100 µg/mL) and plasma (LOQ: 5–

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22

Mikson, Darya S., and Viktor I. Roshchin. "Hydrocarbons and Ethers of Extractive Substances of Siberian Larch Needles." Lesnoy Zhurnal (Forestry Journal), no. 3 (May 20, 2021): 170–85. http://dx.doi.org/10.37482/0536-1036-2021-3-170-185.

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Siberian larch (Larix sibirica L.) is the main commercial species in Russia. Currently, larch woody greens are underutilized. They are considered a waste product from logging. This is due to the lack of knowledge on the composition of compounds and the variability of the raw material source itself as a result of the fall of the needles. The research purpose is to study the composition of hydrocarbons and esters from Siberian larch needles in summer and autumn collection from the Tomsk region. The shredded needles were extracted with propan-2-ol; then, after distillation of the solvent, substan

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23

КУКИНА, Т. П., and И. А. ЕЛШИН. "Terpene and Aliphatic Products of Saponification of the Ether Extract of Euphorbia virgata Waldst. et Kit." Химия в интересах устойчивого развития 32, no. 4 (2024): 502–8. http://dx.doi.org/10.15372/khur2024582.

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Изучен состав липофильных компонентов молочая лозного (Euphorbia virgata Waldst. et Kit.). Кислые и нейтральные компоненты идентифицировали при помощи газо-жидкостной хроматографии с масс-спектрометрической детекцией (ГХ-МС) после щелочного гидролиза цельного экстракта. В качестве экстрагента сырья использован метил-трет-бутиловый эфир (МТБЭ). Выделенные в процессе пробоподготовки суммарные кислоты анализировали после метилирования диазометаном. Состав нейтральных компонентов неомыляемого остатка исследовали без дериватизации, но после разделения методом колоночной хроматографией на силикагеле

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Yoneda, Taichi, Seikou Nakamura, Keiko Ogawa, et al. "Oleanane-type Triterpenes with Highly-Substituted Oxygen Functional Groups from the Flower Buds of Camellia sinensis and Their Inhibitory Effects against NO Production and HSV-1." Natural Product Communications 13, no. 2 (2018): 1934578X1801300. http://dx.doi.org/10.1177/1934578x1801300206.

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Acylated oleanane-type triterpenes named chakasapogenins I (1), II (2), and III (3) were isolated from the hydrolysis product of the extract obtained from the flower buds of Camellia sinensis. The chemical structures of new triterpenes were elucidated on the basis of chemical and physicochemical evidence. chakasapogenin III (3) inhibited nitric oxide (NO) production in lipopolysaccharide- (LPS) activated RAW264.7 macrophages. In addition, R1-barrigenol (7) showed antiviral effect at 10μM against herpes simplex virus type-1 (HSV-1).

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Falsone, Gioacchino, and Claudia Schneider. "Über Inhaltsstoffe von Euphorbiaceae, 8. Mitt. [1]. Triterpenester und Triterpenalkohole aus Euphorbia biglandulosa Desf. / Constituents of Euphorbiaceae, 8. Comm. [1]. Triterpen Esters and Triterpen Alcohols from Euphorbia biglandulosa Desf." Zeitschrift für Naturforschung B 40, no. 4 (1985): 553–55. http://dx.doi.org/10.1515/znb-1985-0420.

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Fatty acids and acetic acid esters of lanosterol and cycloartenol and triterpens alcohols were isolated from the latex of Euphorbia biglandulosa Desf. The triterpenesters were identified as (E,Z)-2,4-decadienoyllanosterol (1a), (E,Z)-2,4-octadienoyllanosterol (1b), (E,Z)-2,4-oc- tadienoylcycloartenol (2a), (2E,4Z)-2,4,6-decatrienoyllanosterol (1c), (2E,4Z)-2,4,6-deca- trienoylcycloartenol (2b), lanosterylacetat (1d) and cycloartenylacetat (2c) by IR-, 1H-NMR- and MS-spectroscopy and hydrolysis. The triterpens alcohols were identified as butyrospermol, cycloartenol, 24-methylencycloartanol and

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26

Chi, Jun, Miaomiao Li, Feihe Lian, Yixiao Li, and Liping Dai. "Cucurbitane Glycosides and Their Potential Anti-Inflammatory Activities from Hemsleya chinensis Tubers." Molecules 30, no. 11 (2025): 2349. https://doi.org/10.3390/molecules30112349.

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Hemsleya chinensis tubers, abundantly produced in southwestern China, are commonly used as a folk medicine that excel in anti-inflammation to treat enteritis, bronchitis, and tonsillitis. In this study, three previously undescribed cucurbitane glycosides, hemchinins G–H (1–3), that were characterized by the presence of four glucose substitutions, as well as eleven ones with one to three β-glucoses, were isolated from the tubers of H. chinensis. The structures were confirmed using comprehensive UV, IR, HR-ESI-MS, and NMR analyses, and absolute configurations were determined through a comparison

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27

Escoffier, Bernard, та Jean-Claude Prome. "Conversion of steroids and triterpenes by mycobacteria: Stereospecific hydrolysis of steroidal spiro-3ξ-oxiranes by Mycobacterium aurum". Bioorganic Chemistry 17, № 1 (1989): 53–63. http://dx.doi.org/10.1016/0045-2068(89)90007-2.

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Hassan, L. G., A. J. Yusuf, N. Muhammad, Cyril Ogbiko, and M. D. Mustapha. "In vitro Phytochemical Screening and Anti-snake Venom Activity of the Methanol Leaf and Stem Bark Extracts of Leptadenia hastata (Asclepiadaceae) against Naja nigricollis." Asian Pacific Journal of Health Sciences 7, no. 3 (2020): 11–14. http://dx.doi.org/10.21276/apjhs.2020.7.3.3.

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Snake envenomation is a major cause of death and morbidity in many developing countries. Leptadenia hastata (Pers.) Decne (Asclepiadaceae) has been reportedly used in traditional medicine as an antivenom, antiulcer, antidiabetic, analgesic, cardiovascular disorders, bacterial and viral infections. This research design is to investigate the phytochemical analysis and phospholipase A2 enzyme inhibition potential of L. hastata leaf and stem bark extracts using standard procedures. Preliminary phytochemical screening revealed the presence of key constituents such as carbohydrates, tannins, flavono

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Stępnik, Katarzyna, Wirginia Kukula-Koch, and Wojciech Płaziński. "Molecular and Pharmacokinetic Aspects of the Acetylcholinesterase-Inhibitory Potential of the Oleanane-Type Triterpenes and Their Glycosides." Biomolecules 13, no. 9 (2023): 1357. http://dx.doi.org/10.3390/biom13091357.

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The acetylcholinesterase-inhibitory potential of the oleanane-type triterpenes and their glycosides from thebark of Terminalia arjuna (Combreatceae), i.e.,arjunic acid, arjunolic acid, arjungenin, arjunglucoside I, sericic acid and arjunetin, is presented. The studies are based on in silico pharmacokinetic and biomimetic studies, acetylcholinesterase (AChE)-inhibitory activity tests and molecular-docking research. Based on the calculated pharmacokinetic parameters, arjunetin and arjunglucoside I are indicated as able to cross the blood–brain barrier. The compounds of interest exhibit a marked

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Fikrat Aliyev, Lala Bunyatova,, Fikrat Aliyev, Lala Bunyatova,, and Aida Gahramanova, Nurlana Aliyeva Aida Gahramanova, Nurlana Aliyeva. "TRAMETES QUEL. EVALUATION OF PHYSICAL FACTORS AFFECTING THE GROWTH OF FUNGI BY THEIR SPECIES." PIRETC-Proceeding of The International Research Education & Training Centre 20, no. 03 (2022): 83–88. http://dx.doi.org/10.36962/piretc20032022-83.

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Main aim of the article is to explore evaluation of physical factors affecting the growth of fungi by their species. There is a certain group of basidiomycetes that are adapted to live only in wood. From an eco-trophic point of view, these fungi belonging to saprotrophs, biotrophs, and polytrophs are called xylotrophs. The main function of these fungi is the destruction or biological decomposition of lignocellulosic substrates. The genus Trametes belongs to the division Basidiomycota, class Basidiomycetes, subclass Homobasidiomycetidae, order Aphyllophorales, family Poriaceae (Poliporaceae). 6

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Sartori, Caroline, Graciene da Silva Mota, Joana Ferreira, Isabel Miranda, Fábio Akira Mori, and Helena Pereira. "Chemical characterization of the bark of Eucalyptus urophylla hybrids in view of their valorization in biorefineries." Holzforschung 70, no. 9 (2016): 819–28. http://dx.doi.org/10.1515/hf-2015-0258.

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Abstract Eucalyptus urophylla hybrids are important raw materials for the forest industry in Brazil, and large quantities of barks are available at mill site that may be used for added-value products. The chemical composition of barks of six commercial hybrids clones of E. urophylla×E. grandis, E. urophylla×E. Camaldulensis, and undisclosed E. urophylla hybrids was studied. The hybrids had similar composition, on average (data based on oven dry bark): 16% extractives, mainly corresponding to polar compounds that are soluble in ethanol and water, 19% lignin, 47% polysaccharides, 1% suberin, and

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Srivastava, Vartika, Rajeev K. Singla, and Ashok K. Dubey. "Inhibition of Biofilm and Virulence Factors of Candida albicans by Partially Purified Secondary Metabolites of Streptomyces chrestomyceticus Strain ADP4." Current Topics in Medicinal Chemistry 18, no. 11 (2018): 925–45. http://dx.doi.org/10.2174/1568026618666180711154110.

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Background: Despite several advancements in antifungal drug discovery, fungal diseases like Invasive Candidiasis (IC) still remain associated with high rates of morbidity and mortality worldwide. Thus there is an enormous need for anti-Candida drugs. Objective: The main objectives of the work included: 1. To investigate therapeutically significant classes of secondary metabolites produced by S. chrestomyceticus strain ADP4. 2. To investigate and analyze inhibition of significant virulence attributes of C. albicans, such as, biofilm and secretory hydrolytic enzymes by ADP4 secondary metabolites

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Chemane, Sandra S. I., Susana Casal, Rebeca Cruz, et al. "Chemical Characterization of the Oil Separated by Mechanical Pressing from Strychnos madagascariensis Dried Fruit Pulp Flour." Foods 11, no. 3 (2022): 474. http://dx.doi.org/10.3390/foods11030474.

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In Mozambique, rural communities produce flours from the dried pulp of Strychnos madagascariensis fruits. Owing to its high lipid content, the oil from this flour is frequently separated by pressing to be used as seasoning and medicine. Aiming to characterize this oil, flour samples (n = 24), dried at two different temperatures (55 °C and 65 °C), were collected from four local communities, together with a control sample prepared in the lab (50 °C). The resulting oil was fluid at room temperature, deep orange, and characterized by a high content of oleic acid (62–63%), followed by palmitic (20%

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Guerra, Ângela R., Ana F. Paulino, Maria M. Castro, Helena Oliveira, Maria F. Duarte, and Iola F. Duarte. "Triple Negative Breast Cancer and Breast Epithelial Cells Differentially Reprogram Glucose and Lipid Metabolism upon Treatment with Triterpenic Acids." Biomolecules 10, no. 8 (2020): 1163. http://dx.doi.org/10.3390/biom10081163.

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Plant-derived pentacyclic triterpenic acids (TAs) have gained increasing attention due to their multiple biological activities. Betulinic acid (BA) and ursolic acid (UA) modulate diverse pathways in carcinogenesis, offering increased changes of success in refractory cancers, such as triple negative breast cancer (TNBC). The present work aimed to assess the metabolic effects of BA and UA in MDA-MB-231 breast cancer cells (TNBC model), as well as in MCF-10A non-cancer breast epithelial cells, with a view to unveiling the involvement of metabolic reprogramming in cellular responses to these TAs.

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Anderson Emamomo Osayerie, Chidera Chizaram Igbomezie, Onyinye Blessing Okonkwo, Tochukwu Josiah Nnaemeka Okonkwo, and Ozadheoghene Eriarie Afieroho. "Free radical scavenging and antiproliferative evaluation of the Olax viridis Oliv. (Olacaceae) whole root." GSC Advanced Research and Reviews 14, no. 3 (2023): 286–91. http://dx.doi.org/10.30574/gscarr.2023.14.3.0084.

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Olax viridis Oliv (Olacaceae) has numerous ethnomedicinal uses including treatment of breast cancer. The study aimed at evaluating the free radical scavenging and antiproliferative activities of O. viridis whole root and the phytoconstituents responsible for this activity. The sample was defatted using n-hexane(NHE), further extracted by cold maceration using absolute methanol to obtain crude extract which was subjected to liquid-liquid partitioning using dichloromethane to afford the dichloromethane fraction (DCM) and aqueous methanol fraction (MEF). Further precipitation of some aqueous meth

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Monasterio, Romina P., Eduardo Trentacoste, Carlos López Appiolaza, et al. "Storage Stability of Arauco Virgin Olive Oil: Evolution of Its Quality Parameters and Phenolic and Triterpenic Compounds under Different Conservation Conditions." Plants 12, no. 9 (2023): 1826. http://dx.doi.org/10.3390/plants12091826.

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The storage conditions are very critical to minimize hydrolytic and oxidative reactions of virgin olive oils (VOOs). These reactions are logically influenced by the composition of the VOO, so that each variety may have a specific behavior. The aim of this study was to evaluate changes in quality parameters and in the phenolic and triterpenic profile of Arauco VOOs, a unique local variety from Argentina, after storage under different conditions. The effects of exposure to light (darkness and light), temperature (24 and 40 °C), packaging material (polyethylene (PET) and dark glass), and headspac

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Anderson, Emamomo Osayerie, Chizaram Igbomezie Chidera, Blessing Okonkwo Onyinye, Josiah Nnaemeka Okonkwo Tochukwu, and Eriarie Afieroho Ozadheoghene. "Free radical scavenging and antiproliferative evaluation of the Olax viridis Oliv. (Olacaceae) whole root." GSC Advanced Research and Reviews 14, no. 3 (2023): 286–91. https://doi.org/10.5281/zenodo.7929049.

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<em>Olax viridis </em>Oliv (Olacaceae) has numerous ethnomedicinal uses including treatment of breast cancer. The study aimed at evaluating the free radical scavenging and antiproliferative activities of <em>O. viridis</em> whole root and the phytoconstituents responsible for this activity. The sample was defatted using n-hexane(NHE), further extracted by cold maceration using absolute methanol to obtain crude extract which was subjected to liquid-liquid partitioning using dichloromethane to afford the dichloromethane fraction (DCM) and aqueous methanol fraction (MEF). Further p

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V.A., Devitskaya, Nesterova O.V., Dobrokhotov D.A., and Zhevlakova A.S. "ANALYSIS OF THE CONTENT OF TRITERPENE SAPONINS IN THE BUDS AND LEAVES OF SILVER BIRCH (BETULA PENDULA ROTH.)." "Medical & pharmaceutical journal "Pulse", November 30, 2023, 5–10. http://dx.doi.org/10.26787/nydha-2686-6838-2023-25-11-5-10.

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Plants of the Birch family are used in official and folk medicine. The buds and leaves of silver birch are used in the Russian Federation as a diuretic. Standardization of raw materials birch leaves is carried out in accordance with the requirements of FS .2.5.0005.15 “Birch leaves”, assessment of the quality of birch buds is carried out in accordance with FS 2.5.0006.15 “Birch buds”. To improve methods for quality control of birch buds and leaves, the authors proposed analyzing raw materials for the presence of a group of triterpene saponins. The study was carried out using raw materials - le

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BELDAR, Vishal, Kirti LADDHA, Rushali DUDURE, Marwa FAYED, and Manojkumar JADHAO. "An Approach for Developing a Simple and Quick Method for Separation of Asiatic Acid and Asiaticoside Rich Fraction From Centella Asiatica and Simultaneous Determination by Reversed-Phase High-Performance Liquid Chromatography." Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi, March 31, 2023, 18–28. http://dx.doi.org/10.29133/yyutbd.1175779.

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In Asian countries, Centella asiatica is exploited for abundant types of pharmacological activities due to the presence of opulent phytochemicals. Asiaticoside, madecassoside, and their sapogenin triterpene acids such as asiatic acid and madecassic acid are the most noticeable triterpenes present in C. asiatica. To date, numerous techniques/methods are used to extract and isolate the different kinds of phytoconstituents from C. asiatica. Still, most methods require some special requirements, and some procedures are monotonous and time-consuming. Meanwhile, previously reported methods used for

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Oztunc, Ozan, Gaye Sumer Okkali, Sevda Zeinali, Ayse Nalbantsoy, and Nazli Boke Sarikahya. "Four new triterpene saponins from Cephalaria speciosa and their potent cytotoxic and immunomodulatory activities." Scientific Reports 13, no. 1 (2023). http://dx.doi.org/10.1038/s41598-023-44114-6.

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AbstractFour new triterpene saponins, namely speciosides A-D (1–4) along with six known saponins were isolated from the n-butanol extract of Cephalaria speciosa. In addition to these, three new prosapogenins (2a–4a) were obtained after alkaline hydrolysis. Elucidation of the structures of the isolated compounds was carried out by 1D, 2D NMR, HR-ESI/MS and GC–MS analyses. Cytotoxic activity was investigated on A549, CCD34-Lu, MDA-MB-231, PC-3, U-87MG, HeLa, HepG-2 cells by MTT method. Additionally, the immunomodulatory effect of compounds was evaluated for macrophage polarization with/without i

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Takla, Sarah S., Eman Shawky, Yasmin A. Mahgoub, and Reham S. Darwish. "Tracking the effect of roasting and fermentation on the metabolites of licorice root (Glycyrrhiza glabra L.) using UPLC-MS analysis combined with multivariate statistical analysis." BMC Complementary Medicine and Therapies 23, no. 1 (2023). http://dx.doi.org/10.1186/s12906-023-04239-7.

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Abstract Background Roasting, honey-roasting and fermentation are the most common pre-processing procedures of licorice roots. They were shown to noticeably change the composition of extracts. In this work, the common alterations in licorice secondary metabolites by processing were interpreted. Comprehensive metabolic profiling of different studied samples was undergone. Methods UPLC-QqQ-MS/MS analysis coupled to various chemometric analysis models was implemented to unravel the effect of different pre-processing procedures on the chemical profile of licorice samples. Results UPLC-QqQ-MS/MS an

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Huang, Teng, Yufang Pan, Eric Maréchal, and Hanhua Hu. "Proteomes reveal the lipid metabolic network in the complex plastid of Phaeodactylum tricornutum." Plant Journal, September 21, 2023. http://dx.doi.org/10.1111/tpj.16477.

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SUMMARYPhaeodactylum tricornutum plastid is surrounded by four membranes, and its protein composition and function remain mysterious. In this study, the P. tricornutum plastid‐enriched fraction was obtained and 2850 proteins were identified, including 92 plastid‐encoded proteins, through label‐free quantitative proteomic technology. Among them, 839 nuclear‐encoded proteins were further determined to be plastidial proteins based on the BLAST alignments within Plant Proteome DataBase and subcellular localization prediction, in spite of the strong contamination by mitochondria‐encoded proteins an

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Cao, Di, Zhengjiao Wang, Xiuting Shen, Xiaojun Song, and Zhongxiang Zhao. "Metabolic and Pharmacokinetic Investigation of Ilexsaponin A₁ in Normal and Antibiotic-treated Rats." Pharmacognosy Magazine, October 31, 2023. http://dx.doi.org/10.1177/09731296231198608.

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Background Ilexsaponin A1 (IA1) is a bioactive triterpene saponin derived from natural medicinal plants. IA1 exhibits anti-inflammatory and proangiogenic activities and improves intestinal barrier function. It has been reported that IA1 could be metabolized into a dominant metabolite, ilexgenin A (IA) by β-glucosidase enzymes in intestinal microflora. Materials and Methods Herein, an accurate, sensitive, and selective method based on ultra-performance liquid chromatography coupled with mass spectrometry was established to simultaneously profile the metabolism and pharmacokinetic behaviors of I

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Chipkar, Sarvada, Katherine Smith, Elizabeth M. Whelan, et al. "Water-soluble saponins accumulate in drought-stressed switchgrass and may inhibit yeast growth during bioethanol production." Biotechnology for Biofuels and Bioproducts 15, no. 1 (2022). http://dx.doi.org/10.1186/s13068-022-02213-y.

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Abstract Background Developing economically viable pathways to produce renewable energy has become an important research theme in recent years. Lignocellulosic biomass is a promising feedstock that can be converted into second-generation biofuels and bioproducts. Global warming has adversely affected climate change causing many environmental changes that have impacted earth surface temperature and rainfall patterns. Recent research has shown that environmental growth conditions altered the composition of drought-stressed switchgrass and directly influenced the extent of biomass conversion to f

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Schütte, Lina, and Ralf G. Berger. "Development of a Bioprocess for Squalene Production in Thraustochytrids." Lebensmittelchemie 79, S2 (2025). https://doi.org/10.1002/lemi.202552232.

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Squalene is a natural triterpene that has many applications in the pharmaceutical, cosmetic and food industry. The current production of this natural substance is problematic, as deep sea sharks are hunted for its extraction from shark liver oil. Extraction from certain lipid‐rich plants is possible, but requires large amounts of land, is seasonal and runs the risk of competing with food production. Therefore, this work deals with an alternative approach: The biotechnological squalene production by marine eukaryotes belonging to the thraustochytrid family.Thraustochytrids are unicellular eukar

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Lacchini, Elia, Marie‐Laure Erffelinck, Jan Mertens та ін. "The saponin bomb: a nucleolar localized β‐glucosidase hydrolyses triterpene saponins in Medicago truncatula". New Phytologist, 23 січня 2023. http://dx.doi.org/10.1111/nph.18763.

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Mengmeng, Song, Xu Zhuicheng, Han Sixuan, et al. "Systematic Identification of the Main Constituents from Agrimonia pilosa Ledeb. and Their Metabolites in Rats using HPLC-Q-TOF-MS/MS." Planta Medica, January 21, 2022. http://dx.doi.org/10.1055/a-1747-6004.

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Abstract Agrimonia pilosa is a perennial herbaceous flowering plant, commonly known as agrimony or hairy agrimony. The dried aerial parts of this species have been widely used for the treatment of acute diarrhea, hemostasis, and other inflammation-related diseases. However, information on the in vivo metabolism of A. pilosa constituents is limited. In this study, the phytochemical profile of A. pilosa was investigated using HPLC-Q-TOF-MS/MS combined with a nontargeted diagnostic ion network analysis strategy. An information-dependent acquisition method with multiple filters was utilized to scr

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Вронська, Л. В., М. Б. Чубка, and А. Є. Демид. "DEVELOPMENT OF PHENOLIC COMPOUNDS CHROMATOGRAPHIC IDENTIFICATION IN BILBERRY SHOOTS." Фармацевтичний часопис, no. 3 (October 12, 2015). http://dx.doi.org/10.11603/2312-0967.2015.3.4951.

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<p align="center"><strong>DEVELOPMENT OF PHENOLIC COMPOUNDS CHROMATOGRAPHIC IDENTIFICATION </strong><strong>IN</strong><strong> BILBERRY SHOOTS</strong><strong></strong></p><p align="center"><strong>L. V. Vronska, M. B. Chubka, A. E. </strong><strong>Demyd</strong></p><p class="Heading10" align="center">SHEI "Ternopil State Medical University by I. Ya. Horbachevsky of MPH Ukraine"</p><p><strong>Introduction.</strong> Bilberry shoots have hypoglycemic properties and are

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Anbuchezian, Sree Thalir, Royapuram Parthasarathy Parameswari, and Anitha Roy. "Effect of Betulinic Acid on Diabetes and its Associated Complications: An Experimental Study." JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH, March 1, 2025. https://doi.org/10.7860/jcdr/2025/76195.20766.

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Introduction: Diabetes Mellitus (DM) is a metabolic disease characterised by elevated blood sugar levels and associated complications, such as inflammation, oxidative stress and tissue damage. Betulinic Acid (BA), a naturally occurring pentacyclic triterpene, has demonstrated potential medicinal benefits, such as anti-inflammatory and antioxidant qualities. Hence, it may be useful to explore BA for its antidiabetic activity. Aim: To assess the impact of BA on diabetes and its related complications using in-vitro enzyme inhibitory assays and a cell line model. Materials and Methods: This experi

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