scholarly journals Effect of Storage and Ageing Time on Sensorial Quality and Composition of Wine Phenolic Compounds Improved with Saccharomyces Cerevisiae Local Hybrid

2021 ◽  
Vol 1115 (1) ◽  
pp. 012071
Author(s):  
I N Tika ◽  
I G A T Agustiana ◽  
L P D Puspaningrat
LWT ◽  
2015 ◽  
Vol 63 (2) ◽  
pp. 953-959 ◽  
Author(s):  
Sajid Maqsood ◽  
Aisha Abushelaibi ◽  
Kusaimah Manheem ◽  
Aysha Al Rashedi ◽  
Isam Tawfik Kadim

2019 ◽  
Vol 13 ◽  
pp. 03005
Author(s):  
Chiara Pastore ◽  
Gianluca Allegro ◽  
Gabriele Valentini ◽  
Emilia Colucci ◽  
Fabrizio Battista ◽  
...  

The effect of biotic and abiotic elicitors on the secondary metabolism in grapevine is gaining a lot of interest, as it has been shown that they can increase the accumulation of phenolic compounds and anthocyanins in particular. The aim of this research was to verify the biochemical and molecular effects of the application of LalVigne™ MATURE (Lallemand, St. Simon, France), 100% inactivated natural yeast (Saccharomyces cerevisiae) on the anthocyanin accumulation in potted plants of Sangiovese. In both years, LVM plants did not differ from C in technological ripening at harvest. A significant increase in anthocyanin concentration and the expression of genes involved in their biosynthesis was found in 2016 in LVM grapes compared to C, while in 2017, a year with extremely warm temperatures, the anthocyanins of C and LVM were comparable, despite a slight increase in LVM after the second treatment.


Fermentation ◽  
2020 ◽  
Vol 6 (3) ◽  
pp. 80
Author(s):  
Andrea Pulvirenti ◽  
Luciana De Vero ◽  
Giuseppe Blaiotta ◽  
Rossana Sidari ◽  
Giovanna Iosca ◽  
...  

Ochratoxin A is a dangerous mycotoxin present in wines and is considered the principal safety hazard in the winemaking process. Several authors have investigated the ochratoxin A adsorption ability of Saccharomyces cerevisiae yeasts, and specifically selected strains for this desired trait. In the present work, a huge selection of wine yeasts was done starting from Portuguese, Spanish and Italian fermenting musts of different cultivars. Firstly, 150 isolates were collected, and 99 non-redundant S. cerevisiae strains were identified. Then, the strains were screened following a multi-step approach in order to select those having primary oenological traits, mainly (a) good fermentation performance, (b) low production of H2S and (c) low production of acetic acid. The preselected strains were further investigated for their adsorption activity of pigments, phenolic compounds and ochratoxin A. Finally, 10 strains showed the desired features. The goal of this work was to select the strains capable of absorbing ochratoxin A but not pigments and phenolic compounds in order to improve and valorise both the quality and safety of red wines. The selected strains are considered good candidates for wine starters, moreover, they can be exploited to obtain a further enhancement of the specific adsorption/non-adsorption activity by applying a yeast breeding approach.


LWT ◽  
2020 ◽  
Vol 128 ◽  
pp. 109447 ◽  
Author(s):  
Raquel Rossetto ◽  
Giselle Maria Maciel ◽  
Débora Gonçalves Bortolini ◽  
Valéria Rampazzo Ribeiro ◽  
Charles Windson Isidoro Haminiuk

2017 ◽  
Vol 243 (7) ◽  
pp. 1287-1294 ◽  
Author(s):  
Andrea Caridi ◽  
Rossana Sidari ◽  
Angelo Maria Giuffrè ◽  
Teresa Maria Pellicanò ◽  
Vincenzo Sicari ◽  
...  

2020 ◽  
Vol 9 (11) ◽  
pp. e45491110225 ◽  
Author(s):  
Anelise Christ-Ribeiro ◽  
Janaína Barreto Alves ◽  
Leonor Almeida de Souza-Soares ◽  
Eliana Badiale-Furlong

The idea that associated agro-industrial by-products only with the production of animal feed has been gradually being replaced, as the scientific community is interested in these products, as low-cost nutrients for the composition of food and/or culture media in research biotechnological to increase or improve nutrients or characteristics inherent in the raw material. Thus, this work aims to characterize input for baking with claim of natural fortification from the fermentation by Saccharomyces cerevisiae. For this, biomass was characterized in terms of its composition (ashes, fibers, lipids, proteins, and carbohydrates) and antioxidant activity of phenolic compounds. The results show an increase in nutrients such as ash, proteins and fibers, in addition the free and bound phenolic compounds present in the biomass showed antioxidant potential. Therefore, fermented rice bran is a potential input to be used in baking.


2019 ◽  
pp. 317-323
Author(s):  
Vadim Vyalkov ◽  
Mariya Sundyreva

Работа посвящена изучению изменений в фенольном метаболизме винограда с различной устойчивостью к милдью при применении прайминга микроорганизмами. Исследования были проведены на двух гибридных формах винограда селекции ФГБНУ СКФНЦСВВ, отличающихся по устойчивости к милдью. В качестве агента прайминга были выбраны симбионтные дрожжи Saccharomyces cerevisiae (S.C.). Было установлено существенное снижение развития милдью на листовых дисках, обработанных S.C. Более восприимчивая к милдью ТАНА 33 демонстрировала отложенную по времени реакцию, связанную с изменением общего содержания фенольных соединений, чем более устойчивая форма ТАНА 42. Обработка S.C. приводила к синтезу ресвератрола у обеих гибридных форм. При непосредственном заражении у ТАНА 33 содержание микроботоксичного виниферина увеличилось на 24 часа быстрее, чем у ТАНА 42, но изначально более высокое его содержание в листьях ТАНА 33 через 48 и 96 часов после обработки заметно снижалось, что говорит о повышенном расходе и недостаточной скорости восполнения, возможно, высоким уровнем ингибирования синтеза его предшественника ресвератрола со стороны патогена. Гваяколовая пероксидаза принимает участие в преобразовании ресвератрола в виниферин. Показано, что существенного роста её активности у ТАНА 33 не происходило ни в один из периодов измерений. В противоположность этому, активность гваяколовых пероксидаз увеличивалась у ТАНА 42 через 48 часов после заражения на фоне S.C. Аналогичная тенденция прослеживалась по активности полифенолоксидазы. Хаотичные изменения в содержании стильбенов, низкая ферментативная активность у формы ТАНА 33 может свидетельствовать либо о недостаточном сигнальном пути, либо об отклонениях в процессе. Для формы ТАНА 42 характерна согласованная динамика содержания фенольных соединений, стильбенов, активности ферментов, более ранняя реакция на возбудителя на фоне обработки S.C.Changes in phenolic metabolism were studied in two hybrid forms of grapevine using priming with microorganisms. The study forms were released by the North-Caucasian Centre of Horticulture, Viticulture and Winemaking and have different resistance to downy mildew. Symbiont yeast Saccharomyces cerevisiae (S.C.) entered as priming agent. A considerably lower development of the disease was registered on leaf disks treated with S.C. The form ТАНА 33 which is more susceptible to downy mildew showed a time-delayed response associated with changes in levels of total phenolic compounds in comparison to the form ТАНА 42 with a better resistance to downy mildew. Resveratrol synthesis was induced in both study forms by S.C. treatment. Following a direct infection with downy mildew, ТАНА 33 showed a 24 h earlier increase in the level of microbe-toxic viniferin than ТАНА 42. Nevertheless, 48 and 96 h after the treatment, the initially higher level of viniferin in ТАНА 33 leaves went down considerably, which suggests a higher utilization and insufficient replenishment rate of this substance, probably, due to high inhibition of the synthesis of resveratol, its precursor, by the pathogen. Transformation of resveratrol into viniferin is assisted by guaiacol peroxidase. No substantial increase in its activity was registered in ТАНА 33 in any measurement time interval. On the contrary, ТАНА 42 showed an increase in guaiacol peroxidase activity 48 h after infection with downy mildew on the background of S.C. treatment. Polyphenol oxidase activity showed a similar tendency. Chaotic changes in stilbene levels and low fermentation activity in ТАНА 33 may indicate either an insufficient signaling pathway or aberrations of the process. A concurrent dynamics as to the levels of phenolic compounds and stibenes and the enzymatic activities as well as an earlier response to the pathogen against the S.C. treatment are characteristic for ТАНА 42.


2020 ◽  
Vol 9 (11) ◽  
pp. e1539119563
Author(s):  
Leticia Jalloul Guimarães ◽  
Lucas Ferreira Santiago ◽  
Juliana Pamapana Nicolau ◽  
Fabiola Cristine de Almeida Rego ◽  
Calie Castilho ◽  
...  

Growth promoters are increasingly restricted in ruminants’ diet. By the need to find safer alternatives for the environment and meat consumers the yeast in probiotics being an alternative. Chemical and tissue composition, lipid oxidation and sensorial quality of meat lambs supplemented with yeast (Saccharomyces cerevisiae), associated or not with the micro minerals, finished in feedlot was evaluated. 24 male lambs, Texel breed lambs divided into three experimental groups (n = 8 lambs / group) CON (without addition of yeast (Saccharomyces cerevisiae)), PB (constituted by yeast Saccharomyces cerevisiae) and PBM (constituted by yeast Saccharomyces cerevisiae + selenium and chrome). After slaughter of the lambs (mean live weight of 55.1 kg), the carcasses were refrigerated for 24 hours, sectioned in the medium for analysis of the Longissimus lumborum muscle. No significant values (P>0.05) were observed for the most qualitative analyzes, except for fat (%) in the proximate composition, with highest values for PBM (5.62%) when compared to CON and PB (P <0.05). The supplementation with yeasts containing or not the micro minerals, did not alter the parameters analyzed, indicating good acceptance and quality of the meat.


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