Allium Chemistry: Supercritical Fluid Extraction and LC−APCI−MS of Thiosulfinates and Related Compounds from Homogenates of Garlic, Onion, and Ramp. Identification in Garlic and Ramp and Synthesis of 1-Propanesulfinothioic Acid S-Allyl Ester
摘要:
Supercritical fluid (SF) extracts of homogenized garlic (Allium sativum L.), ramp (A. tricoccum Ait.), chemical ionization mass spectrometric identification. The major thiosulfinates from garlic and ramp were readily characterized by this technique. Small quantities of ajoene, a potent antithrombotic agent, were also found in SP extracts of garlic homogenates. The profiles of onion juice extracts revealed the usual thiosulfinates, zwiebelanes, and bissulfine reported in prior studies, as well as cepaenes previously identified in extracts of onion juice through extensive isolation steps and spectroscopic methods. The presence of trace quantities of allyl compounds in onion juice and propyl compounds in garlic and ramp-homogenates has been verified by LC-mass spectrometry (MS). The presence of these compounds was not readily evident in previous analyses using gas chromatography-MS with cold-on-column injection and reversed-phase or normal phase LC with UV detection.
PROCESS OF PREPARING CONJUGATES OF ALLIUM ORGANOSULFUR COMPOUNDS WITH AMINO ACIDS, PEPTIDES, AND PROTEINS
申请人:Parkin Kirk L.
公开号:US20110082282A1
公开(公告)日:2011-04-07
Processes using
Allium
tissue homogenates and extracts in a simple and cost-effective manner to maximize the yields and recovery of thiosulfinates from
Allium
tissues and related organisms possessing alliinase, LF synthase and/or S-alk(en)yl-L-cysteine sulfoxides are disclosed.
Apparatus, method and composition for repelling animals
申请人:——
公开号:US20030091664A1
公开(公告)日:2003-05-15
An apparatus, method and composition for repelling animals are disclosed. The apparatus comprises a layer extracted from a plant of an Alliaceae family on a substrate, wherein the substrate is selected from the group consisting of plants, living animals and manufactured objects and combinations thereof. The method comprises extracting a plant of an Alliaceae family, Allium genus; and applying the extract to an exposed surface of a substrate, wherein the substrate is selected from the group consisting of plants, living animals, manufactured objects and combinations thereof. The composition comprises an extract of a plant of an Alliaceae family, Allium genus; and at least one egg, having a yolk portion.
[EN] PROCESS OF PREPARING CONJUGATES OF ALLIUM ORGANOSULFUR COMPOUNDS WITH AMINO ACIDS, PEPTIDES, AND PROTEINS<br/>[FR] PROCÉDÉ DE PRÉPARATION DE CONJUGUÉS DE COMPOSÉS ORGANOSOUFRÉS D'ALLIUM AVEC DES ACIDES AMINÉS, DES PEPTIDES, ET DES PROTÉINES
申请人:WISCONSIN ALUMNI RES FOUND
公开号:WO2011044113A1
公开(公告)日:2011-04-14
Processes using Allium tissue homogenates and extracts in a simple and cost-effective manner to maximize the yields and recovery of thiosulfinates from Allium tissues and related organisms possessing alliinase, LF synthase and/or S-alk(en)yl-L-cysteine sulfoxides are disclosed.
<i>Allium</i> Chemistry: Supercritical Fluid Extraction and LC−APCI−MS of Thiosulfinates and Related Compounds from Homogenates of Garlic, Onion, and Ramp. Identification in Garlic and Ramp and Synthesis of 1-Propanesulfinothioic Acid <i>S</i>-Allyl Ester
作者:Elizabeth M. Calvey、Jean E. Matusik、Kevin D. White、Russell DeOrazio、Deyou Sha、Eric Block
DOI:10.1021/jf970314e
日期:1997.11.1
Supercritical fluid (SF) extracts of homogenized garlic (Allium sativum L.), ramp (A. tricoccum Ait.), chemical ionization mass spectrometric identification. The major thiosulfinates from garlic and ramp were readily characterized by this technique. Small quantities of ajoene, a potent antithrombotic agent, were also found in SP extracts of garlic homogenates. The profiles of onion juice extracts revealed the usual thiosulfinates, zwiebelanes, and bissulfine reported in prior studies, as well as cepaenes previously identified in extracts of onion juice through extensive isolation steps and spectroscopic methods. The presence of trace quantities of allyl compounds in onion juice and propyl compounds in garlic and ramp-homogenates has been verified by LC-mass spectrometry (MS). The presence of these compounds was not readily evident in previous analyses using gas chromatography-MS with cold-on-column injection and reversed-phase or normal phase LC with UV detection.