Day: November 14, 2022

Simon Amoikon, Tiemele Laurent published the artcileA study on the potential of yeasts isolated from palm wines to produce flavouring compounds, COA of Formula: C13H16O, the main research area is Saccharomyces Debaryomyces palm wine synthetic flavouring agent.

Despite the increasing importance of palm wines as a key element in Ivorian socio-cultural practices, and the high involment of yeasts in the production of these beverages, no studies have been devoted to aroma production of yeasts and their potential uses in biotechnol. applications. In this work, aroma profiles of 20 non pathogenic yeast strains (11 from raffia and 9 from ron, representing 13 species) among the 21 yeasts isolated were established using HS-SPME-GC/MS anal. A total of 50 Volatile Organic Compounds (VOCs) produced by these yeasts were identified and grouped into five main families, namely higher alcs., aldehydes, ketones, organic acids and esters. Among these VOCs, esters were the most abundant (28 compounds). Some strains produced specific compounds of technol. interest which could be used for diverse applications, such as beverages, ice creams, baked goods and desserts and synthetic flavouring ingredient. Among them, Hanseniaspora jakobsenii CLIB 3083 produced the highest number of VOCs.

LWT–Food Science and Technology published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, COA of Formula: C13H16O.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Azokpota, Paulin published the artcileVolatile compounds profile and sensory evaluation of Beninese condiments produced by inocula of Bacillus subtilis, COA of Formula: C13H16O, the main research area is flavor volatile condiment fermentation Parkia Bacillus.

Three Beninese food condiments (ABS124h, IBS248h and SBS348h) were produced by controlled fermentation of African locust beans using inocula of pure cultures of Bacillus subtilis, BS1, BS2 and BS3, resp. Quant. and qual. assessments of the volatile compounds in the condiments produced have been performed using the Likens-Nickerson simultaneous distillation-extraction method and GC-MS anal., followed by a sensory evaluation in comparison with the spontaneously fermented condiments. A total of 94 volatile compounds were found including 53 compounds identified in relatively high concentrations and were subdivided into 7 main groups with the predominance of 4 major groups: pyrazines, aldehydes, ketones and alcs. Compared to the spontaneously fermented condiments, volatile compounds identified in controlled fermented condiments have been found in high number and in concentrations which varied according to the inoculum of B. subtilis used. The condiments produced with starter cultures scored significantly (P < 0.05) higher for odor than the spontaneously fermented condiments. But the overall acceptability (7/10) of the two types of condiments was similar. CONCLUSION: The investigated B. subtilis, BS1, BS2 and BS3 can be considered as potential starter cultures for the fermentation of African locust beans to produce good quality of Beninese food condiments. Copyright © 2009 Society of Chem. Industry. Journal of the Science of Food and Agriculture published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, COA of Formula: C13H16O.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Hong, Yeun published the artcileAroma characteristics of fermented Korean soybean paste (Doenjang) produced by Bacillus amyloliquefaciens, Recommanded Product: 5-Methyl-2-phenylhex-2-enal, the main research area is aroma Doenjang Bacillus flavor.

Four strains of Bacillus amyloliquefaciens with high proteolytic, fibrinolytic, and angiotensin converting enzyme (ACE) inhibitory activities were used to make Bacillus-koji suitable for the production of functional doenjang. Volatile compounds in Bacillus-koji doenjang were analyzed by headspace-solid phase microextraction-GC-MS (HS-SPME-GC-MS) to compare the aroma profile with those of com. produced doenjang made with traditional meju and with modified koji. Extraction temperatures for SPME were adjusted to 30 and 90°C. Com. samples contained significantly more esters than Bacillus-koji doenjang and demonstrated a more complex volatile compound profile. Pentanoic acid, butanoic acid, or 2/3-Me butanoic acid, known as off-flavor compounds in doenjang, were not detected in one of the Bacillus-koji doenjang when extracted at 30°C. From the sensory test results, the cheese character was less intense in Bacillus-koji doenjang than com. samples, although not all sensory properties projected a significant difference.

Food Science and Biotechnology published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, Recommanded Product: 5-Methyl-2-phenylhex-2-enal.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Li, Yuan-Yuan published the artcileVolatile organic compounds from a Tuber melanosporum fermentation system, Synthetic Route of 21834-92-4, the main research area is volatile organic compound flavor Tuber fermentation.

A total of 59 volatile organic compounds (VOCs) were identified from Tuber melanosporum fermentation: 53 from its fermented mycelia and 32 from the fermentation broth. Alc.-derived compounds were predominant in both the fermentation mycelia and the broth, although long chain fatty acids and isoprenoids were, for the first time, also found in the mycelia. The intense wine bouquet properties of the broth arose from several specific flavor substances, including sulfur compounds, pyrazines, furans and jasmones. Comparing the VOCs identified in this work with those previously reported, our results are more similar to the composition of the Tuber fruiting-body than previous Tuber fermentations The composition and accumulation of flavor volatiles (e.g., pyrazines, sulfur compounds, and esters) and major constituents (e.g., 3-methyl-1-butanol and 2-phenylethanol) in this fermentation were significantly influenced by the sucrose concentration in the medium. The obtained information could therefore be useful in applications to convert the flavors of truffle mycelia similar to those of the fruiting-body by optimizing the fermentation process.

Food Chemistry published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, Synthetic Route of 21834-92-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Gasinski, Alan published the artcileMalting procedure and its impact on the composition of volatiles and antioxidative potential of naked and covered oat varieties, Recommanded Product: 5-Methyl-2-phenylhex-2-enal, the main research area is naked covered oat volatile compound antioxidant malting.

Grains from four naked oat varieties (Amant, Maczo, Polar and Siwek) and one covered oat variety (Kozak) grown with three different nitrogen fertilization regimes were malted in a laboratory setting using specifications typical for barley malt production (45% moisture content, temperature of germination equal to 15 °C, germination time equal to 120 h). The goal was to determine, whether malting process could be used to improve pro-health properties and aroma of the covered oat and naked oat grain. Malting increased concentration of phenolic compounds (from 44.92 to 64.39 mg GAE per 100 g of grain to 158.06-393.69 mg GAE per 100 g of malt) and increased the antioxidative potential of grains (analyzed by ABTS, DPPH and FRAP assays) by 200-300%. Malting also had an effect on the changes in composition of volatile compounds: the HS-SPME-GC-MS detected 23 compounds in grain samples and 34 compounds were detected in malt samples. The total concentration of volatiles in malts was significantly higher (1659.70-39708.33 ng per 100 g) than in grain samples (882.45-2098.74 ng per 100 g). Malting mostly increased concentration of aldehydes, such as nonanal, decanal and undecanal and pyrazines, such as trimethyl- and tetramethylpyrazine in the acquired malts.

Journal of Cereal Science published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, Recommanded Product: 5-Methyl-2-phenylhex-2-enal.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Xue, Jinjin published the artcileIdentification of aroma-active compounds responsible for the floral and sweet odors of Congou black teas using gas chromatography-mass spectrometry/olfactometry, odor activity value, and chemometrics, Computed Properties of 21834-92-4, the main research area is black tea aroma compound odor GC MS olfactometry chemometrics; aroma-active compounds; congou black tea; floral odor; gas chromatography-mass spectrometry/olfactometry; sweet odor; terpenoid.

Floral and sweet odors are two typical characteristic aromas of Congou black tea, but their aroma-active compounds are still unclear. Characterizing the key aroma-active compounds can provide a theor. foundation for the practical aroma quality evaluation of Congou black tea and directional processing technol. of high-quality black tea with floral or sweet odors. Gas chromatog.-olfactometry (GC-O) combined with odor activity value (OAV) is often used to screen key aroma-active substances, but the interaction between aroma components and their impact on the overall sensory quality is ignored. Therefore, in this study, OAV combined with variable importance in projection (VIP) and Spearman correlation anal. (SCA) were used to characterize the aroma-active components of Congou black teas with floral and sweet odors. Eighty-five volatiles were identified in these samples using gas chromatog.-mass spectrometry (GC-MS). Twenty-three compounds were identified as potential markers for the floral and sweet odors of Congou black teas from orthogonal partial least squares discriminant anal. (OPLS-DA). Eighteen compounds were selected as candidate aroma compounds based on GC-O anal. and OAV calculations In addition, 26 compounds were screened as crucial aroma compounds based on SCA. Finally, 19 compounds were evaluated as key aroma compounds by the comprehensive evaluation of VIP, OAV, and SCA. Terpenoids are the main active compounds that contribute to the floral odor of Congou black tea, whereas aldehydes are the key compounds for the sweet odor. The proposed method can effectively screen the aroma-active compounds and can be used for comprehensive quality control of products. 2022 Society of Chem. Industry.

Journal of the Science of Food and Agriculture published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, Computed Properties of 21834-92-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wei, Quanzeng published the artcileSearch for potential molecular indices for the fermentation progress of soy sauce through dynamic changes of volatile compounds, Synthetic Route of 21834-92-4, the main research area is soy sauce fermentation volatile compound.

To date, the fermentation progress and maturity of soy sauce are mainly judged by olfactory and individual experiences, which are subjective and lack quality control. In this study, dynamic changes of volatile compounds during soy sauce fermentation were profiled to search for mol. indexes of fermentation progression. In total, 119 volatile compounds were identified and quantified by headspace solid-phase microextraction gas chromatog.-mass spectrometry. Principal component anal. (PCA) revealed the compounds that contributed most to the distinction of various stages of fermentation progression; the list included 2-methoxy-4-vinylphenol, phenylethyl alc., phenylacetaldehyde, and benzaldehyde. The degradation of 2-methoxy-4-vinylphenol and the generation of phenylethyl alc. could remarkably discriminate between the discrete stages of soy sauce fermentation It therefore suggests that their group was a refined and potential index to indicate the progression of the soy sauce fermentation This work furthers our understanding of the mol. changes occurring during soy sauce fermentation and improves its quality control and process management.

Food Research International published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, Synthetic Route of 21834-92-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhen, Zong-Yuan published the artcileDetermination of volatile flavor compounds in raw and treated duck meats of different body parts, SDS of cas: 1455-77-2, the main research area is volatile flavor compound body part duck meat; duck meat; gas chromatography-mass spectrometry (GC-MS); headspace solid-phase micro-extraction (SPME); volatile flavor substance.

The compounds in volatile flavor substances in duck meats of three different body parts (breast, leg, and wing) were extracted by headspace solid-phase micro-extraction and determined by gas chromatog.-mass spectrometry. A total of 16 main volatile compounds including 4 hydrocarbons, 4 alcs., 2 acids, 3 aldehydes, and 3 others (N-containing, S-containing) were identified in raw duck meats from three different body parts. The hydrocarbon compounds account for more than 50% of all volatile substances in all three body parts. And the percentage of hydrocarbon compounds in raw duck breast meat reaches 82.76%. A total of 81 volatile compounds including 15 hydrocarbons, 10 alcs., 7 acids, 12 aldehydes, 4 esters, 19 S-containing and N-containing compounds, and 14 others were isolated and identified in 1 h-marinated and cooked duck meats. A total of 101 kinds of volatile flavor compounds including 13 hydrocarbons, 14 alc., 7 acids, 8 aldehydes, 12 esters, 23 S-containing and N-containing compounds, and 24 others were detected in 3 h-marinated duck meats of the three body parts. It was proved in this study that under the same conditions, the volatile compounds in duck legs are more than those in duck breasts and wings, and the types of volatile flavor substances increase significantly in duck meats after cooked. Practical applications Prepared and cooked duck meat, especially wings and legs are popular food in China. The results suggest that Pickling makes duck meat more flavory while proper pickling time is less than 3 h. Duck wings are better for marinating and cooking compared with duck breasts and legs. The acceptance study of duck meat from different body parts and the anal. of volatile flavor compounds are beneficial for optimizing utilization of whole parts of duck meat.

Journal of Food Biochemistry published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, SDS of cas: 1455-77-2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhen, Zong-Yuan published the artcileDetermination of volatile flavor compounds in raw and treated duck meats of different body parts, Computed Properties of 1455-77-2, the main research area is volatile flavor compound body part duck meat; duck meat; gas chromatography-mass spectrometry (GC-MS); headspace solid-phase micro-extraction (SPME); volatile flavor substance.

The compounds in volatile flavor substances in duck meats of three different body parts (breast, leg, and wing) were extracted by headspace solid-phase micro-extraction and determined by gas chromatog.-mass spectrometry. A total of 16 main volatile compounds including 4 hydrocarbons, 4 alcs., 2 acids, 3 aldehydes, and 3 others (N-containing, S-containing) were identified in raw duck meats from three different body parts. The hydrocarbon compounds account for more than 50% of all volatile substances in all three body parts. And the percentage of hydrocarbon compounds in raw duck breast meat reaches 82.76%. A total of 81 volatile compounds including 15 hydrocarbons, 10 alcs., 7 acids, 12 aldehydes, 4 esters, 19 S-containing and N-containing compounds, and 14 others were isolated and identified in 1 h-marinated and cooked duck meats. A total of 101 kinds of volatile flavor compounds including 13 hydrocarbons, 14 alc., 7 acids, 8 aldehydes, 12 esters, 23 S-containing and N-containing compounds, and 24 others were detected in 3 h-marinated duck meats of the three body parts. It was proved in this study that under the same conditions, the volatile compounds in duck legs are more than those in duck breasts and wings, and the types of volatile flavor substances increase significantly in duck meats after cooked. Practical applications Prepared and cooked duck meat, especially wings and legs are popular food in China. The results suggest that Pickling makes duck meat more flavory while proper pickling time is less than 3 h. Duck wings are better for marinating and cooking compared with duck breasts and legs. The acceptance study of duck meat from different body parts and the anal. of volatile flavor compounds are beneficial for optimizing utilization of whole parts of duck meat.

Journal of Food Biochemistry published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Computed Properties of 1455-77-2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Yang, Yang published the artcileStructure-activity relationship study of DEL-22379: ERK dimerization inhibitors with increased safety, Synthetic Route of 104-01-8, the main research area is lung liver cancer DEL22379 anticancer agent ERK signaling; Anti-cancer activity; ERK dimerization inhibitor; Indolin-2-one; Structure–activity relationship; Synthesis.

Abstract: Aberrant activation of ERK signaling pathway usually leads to oncogenesis, and small mol. agents targeting this pathway are impeded by the emergence of drug resistance due to reactivation of ERK signaling. Compound DEL-22379 has been reported to inhibit ERK dimerization which was unaffected by drug-resistant mechanism reactivating the ERK signaling. Here, we discussed a structure-activity relationship study of DEL-22379. Forty-seven analogs were designed and synthesized. Each synthesized compound was biol. evaluated for their inhibitory rates on several tumor cell lines and compounds with high inhibitory rates were further evaluated for IC50 values. The structure-activity relationship of idolin-2-one scaffold and the impact of Z/E configuration on potency were discussed. Potential safety of two synthesized analogs was investigated and in silico docking study of five compounds was performed to understand the structural basis of ERK dimerization inhibition. Graphic abstract: [graphic not available: see fulltext].

Molecular Diversity published new progress about Albumins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Synthetic Route of 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem