Instituto de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
Food Res Int. 2020 Jun;132:109008. doi: 10.1016/j.foodres.2020.109008. Epub 2020 Jan 25.
Wall rocket (Diplotaxis erucoides) is a wild edible herb traditionally consumed in the Mediterranean regions with a characteristic, pungent flavour. However, little is known about its acceptance as a potential new crop. In the present study, an hedonic test with 98 volunteers was performed in order to evaluate the potential of wall rocket as a new crop. Three products were tested corresponding to microgreens, seedlings and baby-leaves. The volatile constituents were also studied due to their probable influence on acceptance, and compared to Dijon's mustard and wasabi. The degree of acceptance was mainly related to taste and pungency. Microgreens were well accepted, whereas seedlings and baby-leaves were mainly appreciated by individuals that enjoy pungent tastes. The purchase intent was also highly related to the acceptance of taste and pungency. The volatiles profile revealed that wall rocket was rich in allyl isothiocyanate, like mustard and wasabi. This compound may be greatly responsible of the relationship between the acceptance of mustard, wasabi and wall rocket. Microgreens displayed the highest levels of isothiocyanates, although the quantity of product tested by panellists did not probably allow the appreciation of such compounds. In baby-leaves, a significant decrease in isothiocyanates GC area and relative abundances was observed. These results suggest that wall rocket microgreens would be accepted by a significant proportion of the general public since pungency is lowly perceived in the product, despite its high levels of isothiocyanates. By contrast, baby-leaves may become a crop for a cohort of consumers that enjoy pungent flavours.
墙火箭（Diplotaxis erucoides）是一种野生食用草本植物，传统上在地中海地区食用，具有独特的刺激性风味。然而，对于它作为一种潜在的新作物的接受程度知之甚少。本研究采用 98 名志愿者进行了愉悦测试，以评估墙火箭作为一种新作物的潜力。测试了三种产品，分别对应于微菜、幼苗和婴儿叶。由于它们可能对接受程度有影响，因此还研究了挥发性成分，并与第戎芥末和日本青芥末进行了比较。接受程度主要与味道和刺激性有关。微菜很受欢迎，而幼苗和婴儿叶主要受到喜欢刺激性味道的人的赞赏。购买意向也与对味道和刺激性的接受程度高度相关。挥发性成分分析表明，墙火箭富含丙烯基异硫氰酸酯，与芥末和日本青芥末相似。这种化合物可能是芥末、日本青芥末和墙火箭接受程度之间关系的主要原因。微菜显示出最高水平的异硫氰酸酯，尽管测试人员测试的产品数量可能不允许对这些化合物进行评估。在婴儿叶中，观察到异硫氰酸酯 GC 面积和相对丰度显著下降。这些结果表明，尽管产品中的刺激性较低，但由于其高水平的异硫氰酸酯，墙火箭微菜将被相当一部分公众所接受。相比之下，婴儿叶可能成为喜欢刺激性味道的消费者的一种作物。
