Artifacts from the methanolic extract of < em > Solanum nigrum < /em > Linn
Nat Prod Res. 2023 Jul 6:1-5. doi: 10.1080/14786419.2023.2232931. Online ahead of print.ABSTRACTTwo new lactones, γ-butyrolactone and δ-valerolactone were isolated from the methanolic extract of Solanum nigrum. Structure elucidation was carried out by exhaustive 2D NMR analysis. The structures of the lactones depict the outcome of their isolation as a situation that involve the formation of artifacts.PMID:37408490 | DOI:10.1080/14786419.2023.2232931 (Source: Natural Product Research)
Source: Natural Product Research - July 6, 2023 Category: Biochemistry Authors: Balan Abhijith Natakkakath Kaliyathan Raveena M V Reshma Ravi S Lankalapalli Source Type: research

Chemical composition and effect of essential oils of < em > Thymus vulgaris < /em > and < em > Origanum vulgare < /em > on adults and ovigerous masses of < em > Pseudosuccinea columella < /em >
Nat Prod Res. 2023 Jul 6:1-5. doi: 10.1080/14786419.2023.2233046. Online ahead of print.ABSTRACTFasciolosis is a worldwide distribution zoonosis that causes great damage in ruminant breeding and has the aquatic mollusc Pseudosuccinea columella as an intermediate host. Synthetic molluscicides are the most used for control; however, they are harmful to fauna and flora. Therefore, this study aimed to evaluate the effect of essential oils from Thymus vulgaris, Origanum vulgare, and terpene carvacrol, on adult molluscs and eggs of P. columella. Analysis of EO volatile components was carried out on a gas chromatograph equipment ...
Source: Natural Product Research - July 6, 2023 Category: Biochemistry Authors: Mitsue Ito Nat ânia C Sperandio Ygor H da Silva Jankerle N Boeloni Mariana D C Ignacchiti Barbara R de Avelar Vagner T de Queiroz Adilson V Costa Isabella V F Martins Source Type: research

A novel diphenylbutenoid-type compound from the rhizomes of < em > Zingiber montanum < /em > (J.Koenig) Link ex A.Dietr. (Zingiberaceae)
Nat Prod Res. 2023 Jul 5:1-6. doi: 10.1080/14786419.2023.2230343. Online ahead of print.ABSTRACTFrom the EtOAc-soluble extract of the rhizomes of Zingiber montanum (J.Koenig) Link ex A.Dietr., a novel diphenylbutenoid, montadinin A (1) and a previously unreported phenylbutenoid compound, 1-(3,4-dimethoxyphenyl)but-3-en-2-ol (7), in natural source were isolated. Additionally, seven known phenylbutenoids were also identified. The structures of all compounds were elucidated through NMR spectroscopic interpretation. Compounds cis-3-(3,4-dimethoxyphenyl)-4-[(E)-3,4-dimethoxystyryl]cyclohex-1-ene (2), cis-4-[(E)-3,4-dimethoxysty...
Source: Natural Product Research - July 5, 2023 Category: Biochemistry Authors: Tho Huu Le Phu Hoang Dang Hai Nhung Truong Thanh Minh Dang Hai Xuan Nguyen Truong Nhat Van Do Mai Thanh Thi Nguyen Nhan Trung Nguyen Source Type: research

The sesquiterpenes with the COVID-19 M < sup > pro < /sup > inhibitory activity from the < em > Carpesium abrotanoides < /em > L
Nat Prod Res. 2023 Jul 5:1-9. doi: 10.1080/14786419.2023.2230609. Online ahead of print.ABSTRACTThe extract of the whole plant of Carpesium abrotanoides L. yielded four new sesquiterpenes including a novel skeleton (claroguaiane A, 1), two guaianolides (claroguaianes B-C, 2-3), and one eudesmanolide (claroeudesmane A, 4), together with three known sesquiterpenoids (5-7). The structures of the new compounds were elucidated by spectroscopic analysis especially 1D and 2D NMR spectroscopy and HRESIMS data. Additionally, all the isolated compounds were preliminarily evaluated for the inhibitive activity of COVID-19 Mpro. As a r...
Source: Natural Product Research - July 5, 2023 Category: Biochemistry Authors: Yu-Wen Fan Zhuo-Yi Ao Wei-Jie Zhang Jia-Yan Chen Xin Lian Yong- Chen Pan Li-Ping Chen Jie-Wei Wu Jie Yuan Source Type: research

Identification of potential probiotics from fermented sour traditional rice varieties and < em > in vitro < /em > simulation studies
Nat Prod Res. 2023 Jul 5:1-8. doi: 10.1080/14786419.2023.2230608. Online ahead of print.ABSTRACTFermented products contain probiotic organisms that have beneficial and therapeutic effects on the gastrointestinal tract. The main objective of the study is to isolate probiotic bacteria from fermented sour traditional rice water and to evaluate their probiotic activity. The microbes were isolated from the fermented rice water and the characterization of the organisms was determined using MALDI-TOF MS. The morphological analysis, biochemical test, and carbohydrate fermentation test were done for further characterization. The co...
Source: Natural Product Research - July 5, 2023 Category: Biochemistry Authors: S P Dharsini Kanagaraj Suganya Sundaravadivelu Sumathi Source Type: research