CAJ | 학술논문

离子交换层析结合制备液相方法从鲜蒜嫩鳞被中制备2种半胱氨酸肽(γ-GCPs)：( SC2 RC7)-γ-L-谷氨酰-S-烯丙基-L-半胱氨酸(1)和(SC2RC7)-γ-L-谷氨酰-S-丙基-L-半胱氨酸(2)。产物结构经HPLC-MS, CD和1 H NMR,13 C NMR分析并与标准品比对确定。利用体外模拟胃、肠消化实验检测其对豆类铁锌生物利用率的影响。结果表明,5 g豆粉中添加0.01 mmol的化合物1和化合物2分别使黄豆铁生物利用率从1.88%提高到6.73%和4.42%,绿豆铁生物利用率从2.52%提高到12.04%和9.38%；使黄豆锌生物利用率从13.37%提高到23.95%和20.58%,绿豆锌生物利用率从15.98%提高到28.44%和27.05%。
리자교환층석결합제비액상방법종선산눈린피중제비2충반광안산태(γ-GCPs)：( SC2 RC7)-γ-L-곡안선-S-희병기-L-반광안산(1)화(SC2RC7)-γ-L-곡안선-S-병기-L-반광안산(2)。산물결구경HPLC-MS, CD화1 H NMR,13 C NMR분석병여표준품비대학정。이용체외모의위、장소화실험검측기대두류철자생물이용솔적영향。결과표명,5 g두분중첨가0.01 mmol적화합물1화화합물2분별사황두철생물이용솔종1.88%제고도6.73%화4.42%,록두철생물이용솔종2.52%제고도12.04%화9.38%；사황두자생물이용솔종13.37%제고도23.95%화20.58%,록두자생물이용솔종15.98%제고도28.44%화27.05%。
Two γ-glutamyl-cysteine peptides (γ-GCPs ) , ( SC2 RC7 )-γ-L-glutamyl-S-allyl-L-cysteine ( 1 ) and ( SC2 RC7 )-γ-L-glutamyl-S-propyl-L-cysteine ( 2 ) have been isolated from fresh garlic scales using ion-exchange chromatography and pre-HPLC. Their molecular structures were identified by HPLC-MS, CD, 1 H NMR, 13 C NMR, specific rotation and confirmed by the corresponding standard compounds. The influence of exogenously adding 1 and 2 on the bioavailability of iron and zinc from food legume was examined with soybean and mung bean, in the level of 0. 01 mmol/5 g of legume respectively. The enhancing effect of the two γ-GCPs of compound 1 and 2 on bioaccessibility of iron was generally evidenced in the case of soybean ( from 1 . 88% to 6 . 73% and 4 . 42%) and mung bean ( from 2 . 52% to 12 . 04% and 9 . 38%) . The two γ-GCPs similarly enhanced the bioaccessibility of zinc from the food legume, in soybean ranging from 13. 37% to 23. 95% and 20. 58%, and in mung bean from 15. 98% to 28. 44% and 27. 05%. Thus, both compounds 1 and 2 obviously had a promoting influence on the bioavailability of iron and zinc from food legumes. These findings are of practical value in a food-based strategy to enhance the bioavailability of trace minerals for human health.