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    Health concerns related to the intake of salt have necessitated the investigation into NaCl reduction by examining the cross-modal interaction between the perception of saltiness and pungency elicited by Sichuan pepper oleoresin (Spo). The category scale and the generalized Labeled Magnitude Scale (gLMS) were used to determine the degree to which Spo enhanced the perception of saltiness in the NaCl model solution. Sixty-eight participants were divided into the hyposensitive, semi-sensitive, and hypersensitive groups according to individual exponent. The power functions of saltiness under different pungency carriers were obtained. The level of enhancement varied between the different sensitivity groups and pungency carriers. In the hypersensitive group, the low and strong pungency carriers effectively enhanced the perception of saltiness at low to moderate, and moderate to strong NaCl solutions, respectively. In the semi-sensitive group, low and moderate pungency carriers induced additive effect in the perception of saltiness at full and moderately strong NaCl solutions, respectively. However, the additive effect was inadequate in the hypo-sensitive group. Therefore, the low pungency solution was more feasible for enhancing in the perception of saltiness, while the maximum NaCl reduction percentages corresponded to the hypersensitive and semi-sensitive groups at 38.61% and 39.06%, respectively. This research not only provided insight into the effect of pungency on the perception of saltiness as it related to individual sensitivity, but also presented valuable information regarding flavor when developing food with reduced salt content. Copyright © 2020. Published by Elsevier Ltd.


    Qing-Bin Zhang, Lei Zhao, Hai-Yan Gao, Lu-Lu Zhang, Hou-Yin Wang, Kui Zhong, Bo-Lin Shi, Long-Yun Liu, Ran Xie. The enhancement of the perception of saltiness by Sichuan pepper oleoresin in a NaCl model solution. Food research international (Ottawa, Ont.). 2020 Oct;136:109581

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    PMID: 32846612

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