The projective mapping and the aroma profiling by GC-MS provide two complementary means to quantify the differences between spice mixes, and can be used to perform a combined analysis that shows to what extent sensory results are already contained in the aroma analysis and vice versa. The full data are very complex to present visually, and a low-rank sub-space of the total variation is obtained by multivariate data analysis, Principal Component Analysis (PCA) to be precise. PCA extracts the most important variance in the data, component by component. It allows focus on the most important part of the variance, in the analysis of the patterns of samples and the variables that describe them.
Structure-Activity Investigations of stilbenes and related 4-substituted resorcinols, obtained from Artocarpus incisus and other plants suggested that the 4-substituted resorcinol skeleton have potent tyrosinase inhibitory ability . Oxyresveratrol, a stilbene isolated from Morus alba, exhibited 32 times inhibitory effect of kojic acid on tyrosinase and the inhibitors act non-competitively on the enzyme . In the structure analysis of extracts from licorice root, glabridin exerts the strongest inhibitory effect on tyrosinase and the inhibitory effect was more effective against monophenol oxidase activity, the rate-determining step, than diphenol oxidase activity . However, glabridin's analog, glabrene, was 100-fold less active than glabridine while glyasperin C, isolated from the same part of the plant, was two times more active than glabridin [26, 27]. 6-hydroxydaidzein (6,7,4'-trihydroxyisoflavone), one kind of hydroxyisoflavones isolated from soybean koji fermented with Aspergillus oryzae, had 6-fold more than kojic acid acting competitively on the tyrosine binding site of the enzyme . It is found that an isoflavone with hydroxyl groups at both the C6 and C7 positions in the A ring would increase both inhibitory effect and affinity to the enzyme more than 10 times .
For a complete guide to setting up and maintaining the separation between meat and dairy see The Kosher Kitchen .
In China, Hormel decided to adopt a different strategy to market Spam, promoting it as a foreign, premium food product and changing the Spam formula to be meatier in order to accommodate local Chinese tastes.