Results 41 to 50 of about 2,922 (175)

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

ChemInform Abstract: Gaudichaudysolin A, a New Limonoid from the Bark of Dysoxylum gaudichaudianum [PDF]

, 2010
A new limonoid, gaudichaudysolin A (1) was isolated from the bark of Dysoxylum gaudichaudianum (Meliaceae) and the structure was elucidated by spectroscopic ...
Takahiro Hosoya, -, Noor Cholies Zaini, Yusuke Hirasawa, -, Idha Kusumawati, Abdul Rahman, -, Idha Kusumawati, -, Reiko Yamanaka, Noor Cholies Zain, -, Yuta Nagakura, -, Reiko Yamanaka, -, Yusuke Hirasawa, Yuta Nagakura, Hiroshi Morita, Takahiro Hosoya, Abdul Rahman, Hiroshi Morita, -   +15 more
core   +1 more source

Fig. 4. A in Limonoid biosynthesis 3: Functional characterization of crucial genes involved in neem limonoid biosynthesis

, 2021
Fig. 4. A) 1H and 13C NMR Chemical Shifts of tirucalla-7,24-dien-3β-ol. 13Cδ are shown in blue colour and 1Hδ are shown in black colour. B) RT-PCR analysis of triterpene synthases and squalene epoxidase in different tissues of neem.
Aarthy, Thiagarayaselvam, Jennifer, Cheruvathur, B, Shilpashree H., Chaya, Patil S., Bhagyashree, Date D., Nagegowda, Dinesh, Pandreka, Avinash, Kumar, Ashish, Mulani, Fayaj A., Thulasiram, Hirekodathakallu V., Ponnusamy, Sudha   +10 more
core   +1 more source

Potential Nutritional Benefits of Current Citrus Consumption

Agriculture, 2013
Citrus contains nutrients and phytochemicals that may be beneficial for health. We collected citrus production and consumption data and estimated the amount of these compounds that are consumed.
Tami Turner, Betty J. Burri
doaj   +1 more source

Validation of a novel bioassay method for the evaluation of the activity of slow‐acting insecticides on tomato borer Phthorimaea absoluta

Pest Management Science, EarlyView.
Extended bioassays revealed that azadirachtin and spirotetramat show strong delayed effects against Phthorimaea absoluta, underestimated by the standard Insecticide Resistance Action Committee (IRAC) method 022 protocol. Incorporating long‐term exposures is essential to accurately assess slow‐acting insecticides and improve resistance management ...
Marianna Stavrakaki, Kyriaki Mylona, Dimitris Piperidis, George Afantenos, Katerina Kremi, Konstantina Alipranti, Konstantinos B. Simoglou, Emmanouil Roditakis   +7 more
wiley   +1 more source

Five New Limonoids from Peels of Satsuma Orange (Citrus reticulata)

Molecules, 2017
Five new: 21,23-dihydro-21-hydroxy-23-oxonomilin (1), 21,23-dihydro-23-methoxy-21-oxonomilin (2), 21,23-dihydro-21-hydroxy-23-oxonomilinic acid methyl ester (3), 21,23-dihydro-23-methoxy-21-oxolimonin (4), and 21,23-dihydro-21-oxolimonin (5), and seven ...
Takashi Kikuchi, Yasuaki Ueno, Yoshino Hamada, Chika Furukawa, Takako Fujimoto, Takeshi Yamada, Reiko Tanaka   +6 more
doaj   +1 more source

Phytochemistry and Biological Activities of Guarea Genus (Meliaceae)

Molecules, 2022
Guarea is one of the largest genera of the American Meliaceae family, consisting of over 69 species which are widely distributed in Mexico, Argentina, and Africa and are used in traditional medicine for several diseases.
Wahyu Safriansyah, Siska Elisahbet Sinaga, Unang Supratman, Desi Harneti   +3 more
doaj   +1 more source

Deciphering Role of Endophytes in Plant Defences and Biotic Stress Resilience Across Families

Plant, Cell &Environment, EarlyView.
ABSTRACT Plant families generate distinct repertoires of specialised metabolites that govern their biotic interactions. Endophytes strengthen host plant defence mechanisms and tolerance to biotic challenges by upregulating metabolite biosynthesis, modifying precursor compounds into more potent forms, or by directly synthesising analogous defence ...
S. Aneeqa Noor, Kavita Verma, Nishu, Barkat Hussain, Vartika Mathur   +4 more
wiley   +1 more source

Twenty-Nine New Limonoids with Skeletal Diversity from the Mangrove Plant, Xylocarpus moluccensis

Marine Drugs, 2018
Twenty-nine new limonoids—named xylomolins A1–A7, B1–B2, C1–C2, D–F, G1–G5, H–I, J1–J2, K1–K2, L1–L2, and M–N, were isolated from the seeds of the mangrove plant, Xylocarpus moluccensis.
Jianzhi Zhang, Wanshan Li, Yiguo Dai, Li Shen, Jun Wu   +4 more
doaj   +1 more source

Association of peanut cultivars and aqueous neem extract in the feeding and development of Spodoptera frugiperda (J. E. Smith)

EntomoBrasilis, 2020
The current study aimed to test how aqueous neem Azadirachta indica A. Juss. extract affects the attractiveness, feeding and development of Spodoptera frugiperda (J. E. Smith) on different: peanut cultivars.
Arlindo Leal Boiça Junior, Nara Elisa Lobato Rodrigues, Julio Cesar Janini, Daline Benites Bottega, Vitor Quintela Sousa, Anderson Gonçalves da Silva   +5 more
doaj   +1 more source