Gludgamble8670

Black soybean sauce's (BSS) aroma was scarcely investigated, which seriously affected BSS's quality and consumers' preference. Thus the aroma compounds in BSS were characterized using gas chromatography-mass spectrometry/gas chromatography-olfactometry coupling with recombination and omission experiments. Sensory evaluation showed the fruity odor was increased by 63% and the malty, alcoholic, floral, smoky, caramel-like and sour odors were decreased by 24-35% when compared to the control soy sauce (SS, p less then 0.05). Totally, 126 volatile compounds, 44 aroma-active compounds and 22 vital aroma-active compounds were identified in BSS. Compared to SS, BSS exhibited a distinctive aroma characteristics which was caused by significantly higher odor activity values (OAVs) of 3-methylbutyl acetate (357%), ethyl propanoate (144%), ethyl 3-methylbutanoate (70%), ethyl 2-methylbutanoate (102%) and lower OAVs of 4-hydroxy-2,5-dimethyl-3(2H)-furanone (52%), 4-hydroxy-2-ethyl-5-methyl-3(2H)-furan-3-one (50%), ethanol (48%), 4-vinylguaiacol (41%), 3-methylthiopropanal (37%), 3-methylbutanol (33%), 4-ethylguaiacol (28%). The results would contribute to BSS's quality control and aroma improvement.The purpose of this paper was to overcome the challenges of curcumin by zein/tea saponin composite nanoparticles (Z/TSNPs) without any organic reagents and high-energy equipment. The spherical Z/TSNPs exhibited good physical stability, the conditions of which included pH at 5.0-8.0, heating at 80 ℃, ionic strength within 100 mM, and storage at 25 ℃ for 30 days. Meanwhile, Z/TSNPs showed excellent redispersibility. check details Z/TSNPs were used to encapsulate and deliver curcumin (Cur-Z/TSNPs), showing encapsulation efficiency and loading capacity of 83.73% and 22.33%, respectively. Cur-Z/TSNPs exhibited good chemical stability during storage, and the effect of light on Cur-Z/TSNPs was smaller than that of free curcumin. Furthermore, Cur-Z/TSNPs improved the solubilization and bioaccessibility of curcumin about 290 and 5 times, respectively. Besides, the encapsulation changed the crystalline state of curcumin to amorphous, and the pH-driven mechanism was probably related to hydrogen bonding, hydrophobic and electrostatic interactions.The new food-derived bio-functional peptides are urgently needed globally, but the separation and purification process for obtaining the immunopeptides from food is low efficiency and highly time-consuming. In the present study, rice proteins were extracted and identified by using liquid chromatography/tandem mass spectrometry (LC-MS/MS). Furthermore, a strategy combining immuno-prediction and in silico simulation was used to screen for peptides showing immunomodulatory activity, including inhibition of the release of nitric oxide, tumor necrosis factor-α, and the interleukins IL-6 and IL-1β in lipopolysaccharide-induced RAW264.7 mouse macrophages. This LC-MS/MS identification and immuno-prediction method may provide insights for the potential identification of more food-derived immunopeptides.Nitraria tangutorum Bobr. (NTB), mainly distributed in the Qaidam Basin of Tibetan Plateau, have high economic, ecological and medicinal value. The chemical compositions in the NTB fruits were tentatively analyzed and characterized by applying UPLC-Q-TOF-MS/MS. Total 45 constituents, including 9 hydroxycinnamic acids derivatives, 12 flavonols, 4 flavonoids, 1 trolox derivative, 8 β-carboline alkaloids, 4 tryptophan derivatives, and 7 other amino acid derivatives were identified by comparing with standard products, and analyzing their retention times, characteristic fragment ions and deprotonated molecule ions. The activity studies in vitro indicated that NTB-Z and NTB-C extracts had marked inhibitory effects against sucrase and maltase. Further sucrose/maltose/starch tolerance experiment demonstrated that both NTB-Z and NTB-C extracts at 400 mg/kg could markedly lower the postprandial blood glucose (PBG) level in diabetic animals. All these results indicated that the NTB fruits could be used as the functional health food or medicine for controlling postprandial blood glucose level.Although arid land honey is outstanding for its conventional uses in food and medicine, there is an absence of data regarding its health benefits from the perspective of enzyme inhibitory effects that are affirmed by the current study. For the first time, this investigation demonstrates that different types of honey exert inhibitory effects on the activities of angiotensin, tyrosinase, xanthine oxidase, -α -amylase, acetylcholinesterase, and lipase, in addition to the inhibition of bovine serum albumin damage. The present study also provides a comparison with perceived healthy honey from non-arid areas. The results indicated huge contrasts among honey samples through all assessed parameters. Results also demonstrated that at least one type of honey from arid land contained a higher inhibition effect when compared with honey from other regions. Therefore, a possible application of arid land honey and its active compounds can be the utilization as a therapeutic agent against several diseases.Turmeric powder is a widely consumed spice, making it an attractive target for adulteration, which is not easily detected. The study examined the simultaneous use of IR spectroscopy in combination with controlled (PCA) and uncontrolled (PLS-DA and CMCA) pattern recognition techniques to detect and classify Sudan Red, starch and metanil yellow fraud in turmeric powder nondestructively. The results showed that the two major peaks in turmeric powder at 1625 cm-1 and 1600 cm-1 are not present in Sudan Red, starch and metanil yellow because these materials lack this functional group. Data distribution at the two PC locations showed clearly scattered clusters according to the four mixing studied models (turmeric powder, turmeric powder-Sudan Red mixture, turmeric powder-starch mixture and turmeric powder-metanil yellow mixture), but there was a clear overlap between turmeric powder and turmeric powder - Sudan red mixture. Both PLS-DA and SIMCA supervised methods showed satisfactory discrimination. The results also showed that in all the sample groups, when the samples were classified by PLS-DA, the values were higher compared to the SIMCA model.