English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Using high-performance liquid chromatography, 11 sulfur-containing flavor precursors were determined quantitatively in seven Allium vegetables: garlic (Allium sativum), onion (A. cepa), Welsh onion (A. fistulosum), Chinese chive (A. tuberosum Rotter), rakkyo (A. chinense G. Don), ‘asatsuki’ (A. schoenoprasum), and leek (A. porrum). The determinants were S-alk(en)yl-L-cysteine derivatives, methiin, alliin, isoalliin, cycloalliin, deoxyalliin, N-(γ-glutamyl)-S-methyl-L-cysteine, N-(γ-glutamyl)-S-(2-propenyl)-L-cysteine, N-(γ-glutamyl)-S-(E-1-propenyl)-L-cysteine (Glu-PEC), N-(γ-glutamyl)-S-(2-propenyl)-L-cysteine sulfoxide, N-(γ-glutamyl)-S-(E-1-propenyl)-L-cysteine sulfoxide (Glu-PECSO) and S-(2-carboxy-propyl) glutathione. The constituents of the flavor precursors, methiin, alliin and isoalliin, were compared among the seven Allium vegetables. Molar ratios of methiin/alliin/isoalliin (M/A/I, %) were similar in onion (16/0/84), Welsh onion (19/0/81), asatsuki (11/0/89), and leek (19/0/81). Garlic, Chinese chive and rakkyo showed specific ratios of 17/78/5, 80/13/7 and 68/0/32, respectively. The storage compounds of isoalliin, a major flavor precursor that is common among seven Allium vegetables, were Glu-PEC in garlic and Glu-PECSO in onion.

Distribution of Eleven Flavor Precursors, S-Alk(en)yl-L-Cysteine Derivatives, in Seven Allium Vegetables