scholarly journals Impact of Chitosan-Genipin Films on Volatile Profile of Wine along Storage

2021 ◽  
Vol 11 (14) ◽  
pp. 6294
Author(s):  
M. Angélica Rocha ◽  
Manuel Coimbra ◽  
Sílvia Rocha ◽  
Cláudia Nunes
Keyword(s):  
Volatile Compounds ◽  
Carbon Chain ◽  
White Wine ◽  
Maillard Reaction Products ◽  
Red Wines ◽  
Reaction Products ◽  
Ethyl Hexanoate ◽  
Organoleptic Characteristics ◽  
Strecker Aldehydes ◽  
Key Odorants

Chitosan-genipin films have been proposed for preservation of white wine, maintaining their varietal key odorants and organoleptic characteristics of sulfur dioxide treated wines. Nevertheless, these wines showed aroma notes that slightly distinguish them. It is possible that during the contact of films with wine for at least 2 months, after fermentation and prior to bottling, interactions or chemical reactions are promoted. In this work, wine model solutions with volatile compounds in contact with chitosan-genipin films were performed to evaluate their evolution along time. To complement these analyses, the volatile compounds of white and red wines kept in contact with chitosan-genipin films during 2 and 8 months were also studied. The results obtained allowed us to conclude that the contact of chitosan-genipin films with both white and red wines tend to retain long carbon chain volatile compounds, such as ethyl hexanoate and octan-3-one. It also promoted the formation of Maillard reaction products, such as furfural by dehydration of pentoses and Strecker aldehydes, such as 3-methylbutanal and phenylacetaldehyde, by degradation of amino acids. This study reveals that the use of chitosan-genipin films for wine preservation is also able to promote the formation of compounds that can modulate the wines aroma, maintaining the varietal notes.

scholarly journals Analysis on antibacterial activities and volatile compounds of Maillard reaction products derived from squid skin

2020 ◽  
Vol 145 ◽  
pp. 01028
Author(s):  
Lili Ji ◽  
Yan Zhang ◽  
Wendong Song ◽  
Lu Cai ◽  
Yaning Wang ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Volatile Compounds ◽  
Maillard Reaction ◽  
Antioxidant Activities ◽  
Food Additives ◽  
Antibacterial Activities ◽  
Maillard Reaction Products ◽  
Reaction Products ◽  
Synthetic Antioxidant ◽  
Predominant Component

Maillard reaction products (MRPs) could offer flavor and aroma for food, and also render functional characteristics. In this work, three squid skin Maillard reaction products with glucose (GSS), fructose (FSS) and lactose (LSS) were prepared, whose volatile compounds were analyzed by gas chromatography-mass spectrometer. And the antibacterial activities of three Maillard reaction products against Escherichia coli, methicillin-resistant Staphylococcus aureus and Vibrio harveyi were investigated. The results showed that the volatile compounds of squid skin MRPs mainly contained alcohol, acid, phenol, ester, aldehyde, alkane, alkene, amide and ester, among which alcohol was the predominant component in the GSS and LSS, accounting for 53.87±6.02 % and 83.67±3.64%, respectively, however, acid was predominant component in the FSS, accounting for 54.19±3.38 %. Surprisingly, 2, 6-di-tert-butyl-4-methylphenol (BHT), as a synthetic antioxidant, was firstly identified in these three MRPs, which directly indicated squid skin MRPs have antioxidant activities. It is demonstrated that the antibacterial abilities of LSS and GSS were superior to that of FSS, and Escherichia coli was the most sensitive to the three MRPs among the three tested bacteria. This study demonstrates squid skin MRPs possess antioxidant and antibacterial abilities, which shows promising and far-ranging prospect in the fields of food additives.

scholarly journals Use of Oak Fragments during the Aging of Red Wines. Effect on the Phenolic, Aromatic, and Sensory Composition of Wines as a Function of the Contact Time with the Wood

Beverages ◽  
2018 ◽  
Vol 4 (4) ◽  
pp. 102 ◽  
Author(s):  
Pilar Rubio-Bretón ◽  
Teresa Garde-Cerdán ◽  
Juana Martínez
Keyword(s):  
Volatile Compounds ◽  
Contact Time ◽  
Sensory Level ◽  
Red Wines ◽  
Extraction Kinetics ◽  
Organoleptic Characteristics ◽  
Oak Barrels ◽  
Wine Aging ◽  
Kinetics Of ◽  
Over Time

The use of oak fragments allows wine cellars to reduce costs and the length of wine aging compared to traditional aging in oak barrels in the winery. The main objective of this work was to study the effect of the use of oak fragments on the volatile, phenolic, and organoleptic characteristics of Tempranillo red wines, as a function of the contact time between the wood and the wine. The results showed important changes in the wines’ colorimetric parameters after two months of contact time. Extraction kinetics of volatile compounds from the wood was highest during the first month of contact for chips, variable for staves, and slower and continuous over time for barrels. Wines macerated with fragments showed the best quality in short periods of aging, while barrel-aged wines improved over the time they spent in the barrel. In addition, the results allowed an analytical discrimination between the wines aged with oak fragments and those aged in oak barrels, and between chips and staves, just as at the sensory level with triangular tasting tests. In conclusion, the use of oak fragments is a suitable practice for the production of red wines, which may be an appropriate option for wines destined to be aged for short periods.

scholarly journals Determination of Antioxidant Capacity, Phenolics and Volatile Maillard Reaction Products in Rye-Buckwheat Biscuits Supplemented with 3β-d-Rutinoside

Molecules ◽  
2019 ◽  
Vol 24 (5) ◽  
pp. 982 ◽  
Author(s):  
Małgorzata Starowicz ◽  
Georgios Koutsidis ◽  
Henryk Zieliński
Keyword(s):  
Antioxidant Capacity ◽  
Volatile Compounds ◽  
Maillard Reaction ◽  
Furfuryl Alcohol ◽  
Solid Phase ◽  
Future Application ◽  
Volatile Fraction ◽  
Maillard Reaction Products ◽  
Bakery Products ◽  
Reaction Products

The Maillard reaction (MR) is responsible for the development of color, taste and aroma in bakery products though the formation of numerous aroma compounds such as pyrazines, pyrroles and aldehydes, nonvolatile taste active compounds and melanoidins. In this article, we investigate the effect of quercetin 3β-D-rutinoside (rutin) supplementation, at the level of 5–50 mg per 100 g, of rye-buckwheat biscuits on the formation of phenolics and volatile Maillard reaction products (MRPs) such as pyrazines, furfuryl alcohol and furfural, determined by headspace solid phase microextraction followed by gas chromatography–mass spectrometry (HS-SPME/GC–MS), in addition to the effect on the antioxidant capacity. The study confirmed that rutin was stable under baking conditions as showed by its content in rye-buckwheat biscuits. Supplementation of biscuits with increasing amounts of rutin resulted in the progressive increase of total phenolics and antioxidant capacity measured by DPPH and OxHLIA assays, but it had no effect on their sensory quality. From the eighteen compounds identified by HS-SPME/GC–MS in the volatile fraction of biscuits were quantitated as a compounds-of-interest: methylpyrazine, ethylpyrazine, 2,3-; 2,5- and 2,6-dimethylpyrazines, as well as furfural, furfuryl alcohol and hexanal. The rutin supplementation of biscuits might be one of the factors to influence the formation of both desirable volatile compounds and undesirable toxic compounds. In conclusion, this study indicates for the significant role of polyphenols on the formation of volatile compounds in biscuits with possible future application in the development of healthy bakery products with high antioxidant capacity.

scholarly journals Sugars Replacement as a Strategy to Control the Formation of α-Dicarbonyl and Furanic Compounds during Cookie Processing

Foods ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 2101
Author(s):  
Fabrizio Cincotta ◽  
Selina Brighina ◽  
Concetta Condurso ◽  
Elena Arena ◽  
Antonella Verzera ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Dry Matter ◽  
Oxidation Products ◽  
Maillard Reaction Products ◽  
Reaction Products ◽  
Chemical Hazard ◽  
Lipid Oxidation Products ◽  
Different Temperatures ◽  
Furanic Compounds ◽  
Faster Development

In the last decade, several preventive strategies were considered to mitigate the chemical hazard accumulation in food products. This work aimed to study the effect of different sugars on the development of the main chemical hazard in cookies. For this purpose, model biscuits prepared using sucrose, fructose, and glucose were baked at different temperatures (150, 170, and 190 °C) and for different times (from 5 to 45 min), and the levels of α-dicarbonyl compounds, such as 3-deoxyglucosone (3-DG), glyoxal (GO) and methylglyoxal (MGO), 5-hydroxymethylfurfural (HMF), and furanic aromatic compounds were monitored. The replacement of sucrose in the cookie recipes with monosaccharides had as a consequence the highest accumulation of 3-DG (200–600 times higher), MGO, HMF, and furanic volatile compounds, while the use of sucrose allowed for maintaining the 3-DG, MGO, and HMF levels at less than 10 mg/kg dry matter in cookies for the estimated optimal baking time. Moreover, cookies with sucrose were characterised in terms of volatile compounds, mainly in terms of lipid oxidation products, while cookies with fructose or glucose baked at the highest temperature were characterised almost exclusively by Maillard reaction products, confirming a faster development of this reaction during baking at the studied temperatures.

scholarly journals Evaluación del perfil aromático de vino blanco producido con cepas resultantes de la fusión de protoplastos de levaduras

2019 ◽  
Vol 4 (2) ◽  
pp. 35
Author(s):  
Maria Berradre ◽  
Ana Cáceres ◽  
Zulay Mármol ◽  
Johanna Raga ◽  
Marisela Rincón ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Volatile Compounds ◽  
Isoamyl Alcohol ◽  
Isoamyl Acetate ◽  
White Wine ◽  
Hybrid Strain ◽  
Yeast Saccharomyces Cerevisiae ◽  
Ethyl Hexanoate ◽  
Headspace Volatile ◽  
Indigenous Yeast

  El estudio de diferentes estrategias para conseguir mayor complejidad aromática a los vinos, es una inquietud constante dentro del campo de la enología debido a que el aroma es uno de los atributos más importantes implicados en la calidad del vino. El objetivo del presente trabajo es determinar el perfil aromático de vino blanco producido mediante fermentación alcohólica de la cepa híbrida SCHLUZ2014 resultante de la fusión intergénica de protoplastos de la levadura autóctona Saccharomyces cerevisiae SCVMLUZ 2008 y la levadura comercial Hanseniaspora guilliermondii CECT (Colección Española de Cultivos Tipo) 11102. Se realizaron vinificaciones en blanco con mosto de uva de la variedad Malvasía, además se realizaron fermentaciones con las levaduras parentales por separado y con un cultivo mixto de éstas. Se midieron los compuestos volátiles mayoritarios originados en la etapa de fermentación: acetato de isoamilo, acetato de etilo, hexanoato de etilo, n-propanol, isobutanol, alcohol isoamílico, acetaldehído y diacetilo. El perfil aromático fue determinado utilizando la técnica de espacio de cabeza acoplada a un cromatógrafo de gases con detector FID y ECD. La levadura híbrida produjo cantidades aceptables de alcoholes superiores y de acetaldehído. El vino generado con ésta cepa presentó mayor cantidad de hexanoato de etilo que la levadura autóctona S.cerevisiae, H.guilliermondii y la mezcla de ambas, por lo que ésta levadura representa una alternativa para la elaboración de vinos blancos con aroma a fruta agradable y matices propios de la región zuliana.   Palabras clave: vino blanco, levadura híbrida, aroma, compuestos volátiles.   Abstract The study of different strategies to achieve greater aromatic intensity to wines, is a constant concern in the field of winemaking because the aroma is one of the most important attributes involved in the quality of wine. The aim of the present work is to determine the aromatic profile of white wine produced by alcoholic fermentation of the hybrid strain resulting from the intergenic fusion of protoplasts of the indigenous yeast Saccharomyces cerevisiae SCVMLUZ 2008 and the commercial yeast Hanseniaspora guilliermondii CECT (Spanish Collection of Type Crops) 11102. Fermentations of white wine were made with grape must of the variety Malvasía, besides making fermentations with the parental yeasts separately and with a mixed culture of these. The majority volatile compounds produced in the fermentation stage were measured: isoamyl acetate, ethyl acetate, ethyl hexanoate, n-propanol, isobutanol, isoamyl alcohol, acetaldehyde and diacetyl. The aromatic profile was used in the technique of coupled head space and gas chromatograph with FID and ECD detector. The hybrid yeast produces acceptable quantities of higher alcohols and acetaldehyde. The wine generated with this strain presented a greater amount of ethyl hexanoate than the indigenous yeast S.cerevisiae, H. guilliermondii and the mixture of both. The hybrid yeast represents an alternative for the production of white wines with pleasant fruit aroma and own nuances from the Zulia region.   Key words: white wine, hybrid yeast, aroma, GC headspace, volatile compounds.

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