Browsing by Author "Esatbeyoglu, Tuba"
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- Corrigendum: Probiotics: mechanism of action, health benefits and their application in food industries (Front. Microbiol., (2023), 14, 1216674, 10.3389/fmicb.2023.1216674)Publication . Latif, Anam; Shehzad, Aamir; Niazi, Sobia; Zahid, Asna; Ashraf, Waqas; Iqbal, Muhammad Waheed; Rehman, Abdur; Riaz, Tahreem; Aadil, Rana Muhammad; Khan, Imran Mahmood; Özogul, Fatih; Rocha, João Miguel; Esatbeyoglu, Tuba; Korma, Sameh A.In the published article, there was an error in affiliation 2. Instead of “UniLaSalle, Transformations and Agroressources Research Unit, Mont-Saint-Aignan, France”, it should be “UniLaSalle, Univ. Artois, ULR7519 - Transformations & Agro-resources, Normandie Université, Mont-Saint-Aignan, France.” The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.
- Effect of fat contents of buttermilk on fatty acid composition, lipolysis, vitamins and sensory properties of cheddar-type cheesePublication . Asif, Mussab; Nadeem, Muhammad; Imran, Muhammad; Ullah, Rahman; Tayyab, Muhammad; Khan, Faima Atta; Al-Asmari, Fahad; Rahim, Muhammad Abdul; Rocha, João Miguel; Korma, Sameh A.; Esatbeyoglu, TubaCheddar-type cheese produced from buttermilk had softer texture than standard cheddar cheese due to lower fat content of buttermilk. Fat is extremely important for the functional characteristics and optimum textural attributes of cheese. The effect of different fat contents of buttermilk on chemical characteristics of cheddar-type cheese is not previously investigated. This investigation was conducted to know the effect of different fat contents of buttermilk on fatty acids composition, organic acids, vitamins, lipolysis and sensory characteristics of cheddar-type cheese. Cheddar-type cheese was produced from buttermilk having 1, 1.75, 2.50 and 3.25% fat contents (control, T1, T2 and T3). Fat content of control, T1, T2 and T3 were 9.81, 16.34, 25.17 and 31.19%. Fatty acids profile was determined on GC–MS, organic acids and vitamin A and E were determined on HPLC. Free fatty acids, peroxide value and cholesterol were determined. Cheddar-style cheese produced from buttermilk (1% fat) showed that it had softer texture and lacking typical cheese flavor. Gas chromatography–mass spectrometry (GC–MS) analysis showed that long-chain unsaturated fatty acids in control, T1, T2 and T3 samples were 45.88, 45.78, 45.90 and 46.19 mg/100 g. High Performance Liquid Chromatography (HPLC) analysis showed that lactic acid, propionic acid, citric acid and acetic acid gradually and steadily increased during the storage interval of 90 days. At the age of 90 days, lactic acid in control, T1, T2 and T3 was 4,789, 5,487, 6,571 and 8,049 ppm, respectively. At the end of ripening duration of 90 days, free fatty acids in control, T1, T2 and T3 were 0.29, 0.31, 0.35 and 0.42% with no difference in peroxide value. Stability of vitamin A after 90 days storage control, T1, T2 and T3 was 87.0, 80.0, 94.0 and 91.0%. Flavor score of cheddar-type cheese produced from butter milk having 1.0, 2.5 and 3.25% fat content was 81, 89 and 91% of total score (9). Hence, it is concluded that cheddar-type cheese can be produced from buttermilk having 2.5 and 3.25% fat contents with acceptable sensory attributes. Application of buttermilk for the production of other cheese varieties should be studied.
- Effect of growth stages and lactic acid fermentation on anti-nutrients and nutritional attributes of spinach (Spinacia oleracea)Publication . Naseem, Adila; Akhtar, Saeed; Ismail, Tariq; Qamar, Muhammad; Sattar, Dur-e-shahwar; Saeed, Wisha; Esatbeyoglu, Tuba; Bartkiene, Elena; Rocha, João MiguelSpinach (Spinacia oleracea) is a winter-season green, leafy vegetable grown all over the world, belonging to the family Amaranthus, sub-family Chenopodiaceae. Spinach is a low-caloric food and an enormous source of micronutrients, e.g., calcium, folates, zinc, retinol, iron, ascorbic acid and magnesium. Contrarily, it also contains a variety of anti-nutritional factors, e.g., alkaloids, phytates, saponins, oxalates, tannins and many other natural toxicants which may hinder nutrient-absorption. This study was aimed at investigating the effect of fermentation on improving the nutrient-delivering potential of spinach and mitigating its burden of antinutrients and toxicants at three growth stages: the 1st growth stage as baby leaves, the 2nd growth stage at the coarse stage, and the 3rd growth stage at maturation. The results revealed the significant (p < 0.05) effect of fermentation on increasing the protein and fiber content of spinach powder from 2.53 to 3.53% and 19.33 to 22.03%, respectively, and on reducing total carbohydrate content from 52.92 to 40.52%; the effect was consistent in all three growth stages. A significant decline in alkaloids (6.45 to 2.20 mg/100 g), oxalates (0.07 mg/100 g to 0.02 mg/100 g), phytates (1.97 to 0.43 mg/100 g) and glucosinolates (201 to 10.50 µmol/g) was observed as a result of fermentation using Lactiplantibacillus plantarum. Fermentation had no impact on total phenolic content and the antioxidant potential of spinach, as evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric-reducing antioxidant power (FRAP) assays. This study proposes fermentation as a safer bioprocess for improving the nutrient-delivering potential of spinach, and suggests processed powders made from spinach as a cost-effective complement to existing plant proteins.
- Effect of Lactiplantibacillus plantarum on the conversion of linoleic acid of vegetable oil to conjugated linoleic acid, lipolysis, and sensory properties of cheddar cheesePublication . Khan, Awais; Nadeem, Muhammad; Al-Asmari, Fahad; Imran, Muhammad; Ambreen, Saadia; Rahim, Muhammad Abdul; Oranab, Sadaf; Esatbeyoglu, Tuba; Bartkiene, Elena; Rocha, João MiguelConjugated linoleic acid (CLA) is perceived to protect the body from metabolic diseases. This study was conducted to determine the effect of Lactiplantibacillus plantarum (Lp. plantarum) on CLA production and sensory characteristics of cheddar cheese. Lp. plantarum can convert linoleic acid (LA) to CLA. To increase CLA in cheddar cheese and monitor the conversion of LA to CLA by Lp. plantarum, the LA content of cheese milk (3.4% fat) was increased by partially replacing fat with safflower oil (85% LA of oil) at 0, 3, 6, and 9% concentrations (T1, T2, T3, and T4). Furthermore, Lp. plantarum 108 colony-forming units (CFU)/mL (8 log CFU mL−1) was added in all treatments along with traditional cheddar cheese culture (Lactococcus lactis ssp. lactis and L. lactis ssp. cremoris). After 30 days of ripening, Lp. plantarum in T1, T2, T3, and T4 was 6.75, 6.72, 6.65, and 6.55 log CFU g−1. After 60 days of ripening, Lp. plantarum in T1, T2, T3, and T4 was 6.35, 6.27, 6.19, and 6.32 log CFU g−1. After 60 days of ripening, Lp. plantarum in T1, T2, T3, and T4 was 6.41, 6.25, 6.69, and 6.65 log CFU g−1. GC-MS analysis showed that concentrations of CLA in the 90 days’ control, T1, T2, T3, and T4 were 1.18, 2.73, 4.44, 6.24, and 9.57 mg/100 g, respectively. HPLC analysis revealed that treatments containing Lp. plantarum and LA presented higher concentrations of organic acids than the control sample. The addition of safflower oil at all concentrations did not affect cheese composition, free fatty acids (FFA), and the peroxide value (POV) of cheddar cheese. Color flavor and texture scores of experimental cheeses were not different from the control cheese. It was concluded that Lp. plantarum and safflower oil can be used to increase CLA production in cheddar cheese.
- Glutathione for food and health applications with emphasis on extraction, identification, and quantification methods: a reviewPublication . Al-Temimi, Anfal Alwan; Al-Mossawi, Aum El Bashar; Al-Hilifi, Sawsan A.; Korma, Sameh A.; Esatbeyoglu, Tuba; Rocha, João Miguel; Agarwal, VipulGlutathione is a naturally occurring compound that plays a crucial role in the cellular response to oxidative stress through its ability to quench free radicals, thus mitigating the risk of potential damage, including cell death. While glutathione is endogenously present in different plants and animal cells, their concentration varies considerably. The alteration in glutathione homeostasis can be used as a potential marker for human diseases. In the case of the depletion of endogenous glutathione, exogenous sources can be used to replenish the pool. To this end, both natural and synthetic glutathione can be used. However, the health benefit of glutathione from natural sources derived from fruits and vegetables is still debated. There is increasingly growing evidence of the potential health benefits of glutathione in different diseases; however, the determination and in situ quantification of endogenously produced glutathione remains a major challenge. For this reason, it has been difficult to understand the bioprocessing of exogenously delivered glutathione in vivo. The development of an in situ technique will also aid in the routine monitoring of glutathione as a biomarker for different oxidative stress-mediated diseases. Furthermore, an understanding of the in vivo bioprocessing of exogenously delivered glutathione will also aid the food industry both towards improving the longevity and profile of food products and the development of glutathione delivery products for long-term societal health benefits. In this review, we surveyed the natural plant-derived sources of glutathione, the identification and quantification of extracted glutathione from these sources, and the role of glutathione in the food industry and its effect on human health.
- Probiotics: mechanism of action, health benefits and their application in food industriesPublication . Latif, Anam; Shehzad, Aamir; Niazi, Sobia; Zahid, Asna; Ashraf, Waqas; Iqbal, Muhammad Waheed; Rehman, Abdur; Riaz, Tahreem; Aadil, Rana Muhammad; Khan, Imran Mahmood; Özogul, Fatih; Rocha, João Miguel; Esatbeyoglu, Tuba; Korma, Sameh A.Probiotics, like lactic acid bacteria, are non-pathogenic microbes that exert health benefits to the host when administered in adequate quantity. Currently, research is being conducted on the molecular events and applications of probiotics. The suggested mechanisms by which probiotics exert their action include; competitive exclusion of pathogens for adhesion sites, improvement of the intestinal mucosal barrier, gut immunomodulation, and neurotransmitter synthesis. This review emphasizes the recent advances in the health benefits of probiotics and the emerging applications of probiotics in the food industry. Due to their capability to modulate gut microbiota and attenuate the immune system, probiotics could be used as an adjuvant in hypertension, hypercholesterolemia, cancer, and gastrointestinal diseases. Considering the functional properties, probiotics are being used in the dairy, beverage, and baking industries. After developing the latest techniques by researchers, probiotics can now survive within harsh processing conditions and withstand GI stresses quite effectively. Thus, the potential of probiotics can efficiently be utilized on a commercial scale in food processing industries.
- Utilization of malted barley flour as replacement of wheat flour to improve technological, rheological, physicochemical, and organoleptic parameters of fortified breadsPublication . Aslam, Jawed; Hussain, Ashiq; Ud-Din, Ghulam Mueen; Kausar, Tusneem; Siddique, Tahira; Kabir, Khurram; Gorsi, Faiza Iftikhar; Haroon, Haseeb; Nisar, Rizwan; Noreen, Saima; Rocha, João Miguel; Ozogul, Fatih; Esatbeyoglu, Tuba; Korma, Sameh A.Introduction: Flours from cereal grains have the potential to be used in the production of bakery products, especially breads, and the addition of other non–wheat plant materials in the form of flours, extracts and malts has always been the area of interest for food producers. Methods: In this research work, barley grains were converted into barley malt flour (BMF), by adopting a series of processes, including steeping, germination, kilning, drying and milling. With the aim of compensating the role of commercial bread improvers, wheat flour was replaced at 0, 2.5, 5, 7.5, and 10% levels with BMF, to study the effect of BMF on physicochemical and sensory characteristics of bread. Results and discussion: Chemical analysis of flours revealed that ash, fat, moisture, protein and fibers were found greater in BMF and BMF–incorporated composite flours, as compared to wheat flour. Significant increases in water absorption and decrease in dough stability, dough development time and falling number were noticed, as a result of an increase in the replacement level of BMF. Water absorption of control dough was 58.03%, which increased to 58.77% in composite flour having 10% BMF, whereas dough development time, dough stability and α–amylase activity of control, were 6.97 min, 12 min, and 736 s, respectively, which were decreased to 3.83 min, 4.73 min, and 360 s, respectively in composite flour having 10% BMF. The internal and external characteristics of breads obtained the best sensorial score at 5% replacement level of BMF, and deterioration in the quality of breads was noticed, as the level of BMF was further increased to 7.5 and 10%. Hence, breads developed with 5% BMF and 95% wheat flour, were not only nutritionally rich, but were also with optimum physical and sensory features. BMF could prove a useful alternate ingredient of wheat flour, and a cost-effective replacement of commercially available bread improvers, in the breads manufacturing process in replacement of synthetic bread improvers.