scholarly journals Predicted Shelf-Life, Thermodynamic Study and Antioxidant Capacity of Breadsticks Fortified with Grape Pomace Powders

Foods ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2815
Author(s):  
Federico Bianchi ◽  
Elisabetta Lomuscio ◽  
Corrado Rizzi ◽  
Barbara Simonato

Grape pomace (GP), is the main winemaking by-product and could represent a valuable functional food ingredient being a source of bioactive compounds, like polyphenols. Polyphenols prevent many non-communicable diseases and could contrast the oxidation reaction in foods. However, the high content in polyunsaturated fatty acid, the described pro-oxidant potential action of some polyphenols and the complex interactions with other components of matrices during food processing must be considered. Indeed, all these factors could promote oxidative reactions and require focused and specific assay. The aims of this study were to evaluate the effects of GP powder (GPP) addition (at 0%, 5% and 10% concentrations) in breadsticks formulations both on the antioxidant activity at room temperature during storage and on the shelf-life by the OXITEST predictive approach. GPP fortification increased the total polyphenols content and the antioxidant activities of breadsticks. FRAP reduced during the first two days of storage at room temperature, TPC increased during the 75 days, while ABTS showed a slight progressive decrease. However, GP negatively influenced OXITEST estimated shelf-life of breadsticks, incrementing the oxidation rate. In conclusion, even if GP fortification of breadsticks could improve the nutritional value of the products, the increased commercial perishability represents a drawback that must be considered.

2011 ◽  
pp. 151-157 ◽  
Author(s):  
Marijana B. Saka ◽  
Julianna F. Gyura ◽  
Aleksandra Mišan ◽  
Zita I. Šereš ◽  
Biljana S. Pajin ◽  
...  

The antioxidant activity of cookies prepared by the addition of sugarbeet dietary fibers was investigated in order to estimate their influence on functional characteristics and shelf-life of cookies. Treated fiber (TF) was obtained from sugarbeet by extraction with sulfurous acid (75 °C at pH = 5.7during 60 min) and treatment with hydrogen peroxide (20 g/LH2O2 at pH = 11 during 24 h). The fiber obtained was dried (80 °C), ground and sieved. TF was investigated in comparison with commercially available Fibrex®. The cookies were prepared by the addition of 0, 7, 9 and 11% of sugarbeet dietary fiber as a substitute for wheat flour in the formulation of cookies. The antioxidant properties of cookies were tested every 7 days using a DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging activity test during 6 weeks of storage at room temperature (23 ± 1 ºC). The obtained results indicated that substitution of wheat flour with Fibrex® in the formulation of cookies upgraded the antioxidant activity, i.e. the functional characteristics of Fibrex®-enriched cookies and could prolong their shelf-life. In contrast, TF did not increase the antioxidant activity of TF-enriched cookies. The better antioxidant activities of Fibrex®-enriched cookies could be attributed to the presence of ferulic acid.


2021 ◽  
Vol 8 ◽  
Author(s):  
Harsh Bhaskar Jadhav ◽  
Uday S. Annapure ◽  
Rajendra R. Deshmukh

Food is subjected to various thermal treatments during processes to enhance its shelf-life. But these thermal treatments may result in deterioration of the nutritional and sensory qualities of food. With the change in the lifestyle of people around the globe, their food needs have changed as well. Today's consumer demand is for clean and safe food without compromising the nutritional and sensory qualities of food. This directed the attention of food professionals toward the development of non-thermal technologies that are green, safe, and environment-friendly. In non-thermal processing, food is processed at near room temperature, so there is no damage to food because heat-sensitive nutritious materials are intact in the food, contrary to thermal processing of food. These non-thermal technologies can be utilized for treating all kinds of food like fruits, vegetables, pulses, spices, meat, fish, etc. Non-thermal technologies have emerged largely in the last few decades in food sector.


2019 ◽  
Vol 1 (1) ◽  
pp. 13
Author(s):  
Hisworo Ramdani ◽  
Siti Fatimah

Food processing in the industry aims to extend the shelf life of a product. Shelf life is one of the requirements that must be evaluated before food products were marketed and safety for consumption. Estimation of shelf life was done by conventional methods. The conventional methode that was storage of some products at room temperature conditions which have the same weight and date of production. Observations data were taken on parameters of water content, vitamin C, color and total microbes (TPC). The experimental design taken partially staggered design by simple regression. The results showed that the dried chilli was increasing for water content 0.0975%, vitamin C 0.27 mg 100 g-1, log TPC as much as 0.0487 colonies g-1 and chili color which remained stable in the range of 16-18.3 chroma of storage for 24 days. Based on the results of the calculation of the conventional method, the linear regression equation of water content was y = 0.0975x + 8.0732 so that it obtained 71 days shelf life and based on log TPC regression was y = 0.0487x + 8.1831 obtained 65 days shelf life.


2015 ◽  
Vol 10 (2) ◽  
pp. 105 ◽  
Author(s):  
Sara Lombardo ◽  
Gaetano Pandino ◽  
Cristina Restuccia ◽  
Giuseppe Muratore ◽  
Fabio Licciardello ◽  
...  

Two globe artichoke cultivars (<em>Violet de Provence</em> and <em>Apollo</em>) were harvested at an experimental field in Sicily, immediately washed with ozonised water and stored in: i) normal atmosphere; ii) ozone-enriched atmosphere for 3 days and for the last 4 days in normal atmosphere; iii) ozone-enriched atmosphere for 7 days. A control (samples unwashed and stored at room temperature) was also investigated. The effect of c<em>ultivar x ozone treatment</em> interaction on water content losses, total polyphenols content and antioxidant activity was evaluated after 0, 3 and 7 days of storage. Washing with ozonised water and storage under O<sub>3</sub><sup>-</sup> enriched atmosphere allowed higher water retention compared with the control, especially for <em>Violet de Provence</em>. After 3 days of storage in ozone-enriched atmosphere, on average of cultivars, the total polyphenols content and antioxidant activity increased by 11.7% and 5.5%, respectively. By contrast, after further 4 days of storage in ozonised atmosphere, <em>Apollo</em> and <em>Violet de Provence</em> displayed a significant reduction in their level of total polyphenols and antioxidant activity. The exposure of globe artichoke heads to an ozone-enriched atmosphere should not exceed 3 days aimed at preserving their high nutritional value, with special emphasis on total polyphenols content.


2016 ◽  
Vol 39 (1) ◽  
Author(s):  
Neelma Munir ◽  
Sundas Moazzam ◽  
Rukhama Haq ◽  
Faiza Saleem ◽  
Shagufta Naz

In the present study, peas were exposed to three different doses of gamma radiation i.e. 1, 1.5, 2.5 kGy. The nutritional value of peas after radiation was analyzed to determine the effect of gamma radiation on proximate composition. In the light of results, it was found that 1 kGy is optimized dose that has little effect on the nutritional value of peas. At 1 kGy the sensory properties remain unchanged and the shelf life of peas was increased up to 9 days at room temperature.


2021 ◽  
Vol 2 (4) ◽  
pp. 6133-6141
Author(s):  
Ceja León Edna Sofía ◽  
Sánchez Saavedra Ma. Guadalupe ◽  
Cárdenas Pérez Ricardo ◽  
Loeza Lara Pedro Damian ◽  
Núñez Oregel Verónica

La tortilla de maíz (Zea mays L.), es la base de la alimentación mexicana, por su alto valor nutricional, no obstante, dado el nivel calórico que presenta se buscan alternativas que disminuyan este contenido. Una opción es adicionarle nopal, lo que disminuye el nivel calórico y proporciona beneficios importantes tales como, buena fuente de fibra dietética, actividad antioxidante, efecto prebiótico y con ello, es una alternativa para prevención de enfermedades crónicas degenerativas. Sin embargo, dada la alta actividad acuosa del nopal disminuye considerablemente la vida de anaquel de la tortilla, ocasionando deterioro significativo en pocos días. Para revertir tal efecto existen conservadores químicos como: el benzoato de sodio y ácido cítrico y conservadores biológicos como: las gomas arábigas, guar, xantana y el quitosano, que favorecen la baja actividad acuosa y permiten estabilizar de manera importante un alimento. Aunado al interés de la población de una disminución del consumo calórico también existe la preocupación de consumir alimentos libres de patógenos y la menor cantidad de aditivos posibles.  Por lo anterior, en este trabajo se analizan diferentes conservadores químicos y biológicos con la finalidad de alargar la vida de anaquel de la tortilla de nopal con la mínima dosis posible. Para ello, a 1 kg de masa se agregó el agente conservante en diferentes concentraciones, se homogeneizó y posteriormente se elaboraron las tortillas a partir de 30 g de la masa, se dejó alcanzar la temperatura ambiente, empacaron y almacenaron a 25 °C y 4 °C, se registró diariamente el estado de la tortilla hasta observar cambios desfavorables. Se obtuvieron resultados con una duración de 5 días a temperatura ambiente con aditivos diferentes y de 25 y 37 días a temperatura de 4°C.   Corn tortilla (Zea mays L.) is the basis of Mexican food, due to its high nutritional value; however, given its high caloric content, alternatives are being sought to reduce this content. One option is to add nopal, which reduces the caloric level and provides important benefits such as a good source of dietary fiber, antioxidant activity, prebiotic effect and thus is an alternative for the prevention of chronic degenerative diseases. However, due to the high aqueous activity of nopal, the tortilla's shelf life decreases considerably, causing significant deterioration in a few days. To reverse this effect, there are chemical preservatives such as sodium benzoate and citric acid and biological preservatives such as gums arabic, guar, xanthan and chitosan, which favor the low water activity and can significantly stabilize a food. In addition to the population's interest in reducing caloric intake, there is also the concern of consuming food free of pathogens and the least amount of additives possible.  Therefore, in this work, different chemical and biological preservatives are analyzed in order to extend the shelf life of nopal tortillas with the minimum possible dose. For this purpose, the preservative agent was added to 1 kg of dough in different concentrations, homogenized and then the tortillas were made from 30 g of dough, allowed to reach room temperature, packed and stored at 25 °C and 4 °C, and the tortilla condition was recorded daily until unfavorable changes were observed. Results were obtained with a shelf life of 5 days at room temperature with different additives and 25 and 37 days at 4°C.


2019 ◽  
Vol 57 (3B) ◽  
pp. 17
Author(s):  
Tran Xuan Hien ◽  
Huynh Lien Huong ◽  
Nguyen Trung Thanh

ABSTRACT - QMFS 2019               Pouteria campecchiana, a fruit cultivated in many provinces of the Mekong Delta, is typically eaten fresh and has many benefits to human health. Therefore, quality control during storage of this fruit is very important for fresh consumption and food processing. This study was conducted to investigate the effects of postharvest maturity on the quality of the fruit stored at room temperature, mainly on its chemical composition and bioactive compounds content. The results showed that storage time greatly affected amounts of carotenoids, tannin, phenolic and flavonoids: Highest content of carotenoids, polyphenols, flavonoids were obtained at day 10th of storage while tannin content gradually declined. The greatest antioxidant activity of fruit extracts was also obtained after 10 days storage. It was recommended that highest nutritional value of Pouteria campecchiana can be achieved from 8 to 10 days after harvest.


Proceedings ◽  
2020 ◽  
Vol 70 (1) ◽  
pp. 92
Author(s):  
Joan Oñate Narciso ◽  
Laura M. Nyström

Cultivating ancient crops improves food security by diversifying our staple foods. An example of ancient Philippine crops is the kabog millet, an ecotype of Panicum miliaceum. Little is known about its nutritional quality; hence, the nutritional value of kabog millet was analyzed in comparison to rice and to a reference millet sourced from local supermarkets in Switzerland. We found that whole grain kabog millet has a dietary fiber and ash content almost three times of black rice, protein levels almost double of white rice and 1.5 times higher than black rice, total phenolic acid content more than double than black rice and more than five times higher than the reference millet, and a total carotenoid content that is almost 2.5 times higher than the reference millet and almost five times higher than black rice. To assess the antioxidant activity, DPPH, 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), and Oxygen Radical Absorbance Capacity (ORAC) were used. The antioxidant activities of the whole kabog millet were significantly higher than the reference millet in all three assays. By giving attention to underutilized, ancient crops, we are not only saving biodiversity and our planet, but we are also breathing new life into these forgotten ancient treasures.


Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 417
Author(s):  
Ioana Otilia Ghinea ◽  
Maria Daniela Ionica Mihaila ◽  
Giorgiana-Valentina Blaga (Costea) ◽  
Sorin Marius Avramescu ◽  
Mihaela Cudalbeanu ◽  
...  

The purpose of this study was to assess the suitability of the Romanian Albanus hybrid of Sorghum bicolor as a potential functional food ingredient. Ultrasound-assisted extraction in different solvents, together with spectrophotometric and chromatographic methods, was used to monitor the variation in total phenolic and flavonoid content and the antioxidant activity of raw sorghum grains before and during short germination periods (24, 36 and 48 h). The High-Performance Liquid Chromatography with Diode-Array Detection (HPLC-DAD) investigation of the extracts revealed that the ungerminated sorghum grains extracted with methanol had the highest diversity of phenolic compounds, while the total phenolic content (TPC) was the highest after 36 h of germination in both extract types: 1853 mg GAE/100 g for the methanolic extract and 1726 mg GAE/100 g for the ethanolic extract. The findings of this study showed that the TPC of sorghum extracts is strongly correlated with their antioxidant activity and, overall, that the studied extracts presented a good radical scavenger activity, which supports the benefits of alimentary uses of Sorghum bicolor grains.


Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1280
Author(s):  
Dariusz Dziki

Wheat pasta is one of the most important cereal products and is becoming increasingly popular worldwide because of its convenience, simple formulation, long shelf life, and high energetic value. Wheat pasta is usually obtained from refined flour rich in carbohydrates but with low content of phytochemicals, micronutrients, and fibre. The increased demand of consumers for healthy foods has generated interest among both researchers and food producers in developing functional food products. This review showcases the current trends in pasta fortification. Changes in the nutritional value, cooking quality, sensory attributes, and antioxidant properties of durum and common wheat pasta enriched with both plant and animal raw materials are discussed.


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