The preliminary results indicate that these molecular clefts not only recognize neutral molecules, but also show good enantio selectivity for D/L amino acid methyl esters.

初步研究表明，这类裂缝型受体不仅对中性小分子具有优良的识别性能，而且对D/L 氨基酸甲酯具有良好的手性识别能力。

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In beverages and condiments, esters, organic acids, sugars and amino acids are the major flavor components.

饮品与调味品中的香味成分主要包括酯类、有机酸、糖类和氨基酸等。

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It was found that there was some difference in ethanols content, esters content, aldehydes content, and amino acids content between the wine with or without wheat starter addition.

试验结果表明，麦曲的加入对酯类物质和氨基酸类物质的含量影响明显，而对醛类物质和醇类物质的影响不大。

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