BackgroundRipening of cheddar cheese is a time taking process, duration of the ripening may be as long as one year. Long ripening time is a big hindrance in the popularity of cheese in developing countries. Further, energy resources in these countries are either insufficient or very expensive. Therefore, those methods of cheese ripening should be discovered which can significantly reduce the ripening time without compromising the quality characteristics of cheddar cheese. In accelerated ripening, cheese is usually ripened at higher temperature than traditional ripening temperatures. Ripening of cheddar cheese at high temperature with the addition of vitamin E and selenium is not previously studied. This investigation aimed to study the antioxidant activity of selenium and vitamin E in accelerated ripening using cheddar cheese as an oxidation substrate.MethodsThe ripening of cheddar cheese was performed at 18 °C and to prevent lipid oxidation, vitamin E and selenium were used alone and in combination. The treatments were as: cheddar cheese without any addition of vitamin E and selenium (T1), cheddar cheese added with 100 mg/kg vitamin E (T2), 200 mg/kg vitamin E (T3), 800 μg/kg selenium (T4), 1200 μg/kg selenium (T5), vitamin E 100 mg/kg + 800 μg/kg selenium (T6) and vitamin E 200 mg/kg + 1200 μg/kg selenium (T7). Traditional cheddar cheese ripne ripened at 4-6 °C for 9 months was used as positive control. Cheese samples were ripened at 18 °C for a period of 12 weeks and analyzed for chemical and oxidative stability characteristics at 0, 6 and 12 weeks of storage. All these treatments were compared with a cheddar cheese without vitamin E, selenium and ripened at 4 °C or 12 weeks. Vacuum packaged cheddar cheese was ripened 18 °C for a period of 12 weeks and analyzed for chemical and oxidative stability characteristics at 0, 4 and 8 weeks of storage period.ResultsAddition of Vitamin E and selenium did not have any effect on moisture, fat and protein content of cheddar cheese. After 6 weeks of ripening, total antioxidant capacity of T1, T2, T3, T4, T5, T6, T7 and standard cheese were 29.61%, 44.7%, 53.6%, 42.5%, 41.4%, 64.1%, 85.1% and 25.4%. After 6 weeks of ripening, reducing power of T1, T2, T3, T4, T5, T6, T7 and SC cheese were 14.7%, 18.1%, 26.3%, 19.2%, 25.3%, 33.4%, 40.3% and 11.6%. After 6 weeks of ripening, 1, 1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity of T6 and T7 were 54.2% and 66.9%. While, DPPH free radical scavenging activity of T1 and standard cheese after 6 weeks of ripening were, 19.1 and 18.5%, respectively. Free fatty acids of vitamin E and selenium supplemented, non-supplemented and standard cheese were not significantly influenced from each other in 0, 6 and 12 weeks old cheddar cheese. Peroxide values of T1, T2, T3, T4, T5, T6, T7 and standard cheese after 6 weeks of accelerated ripening were 1.19, 1.05, 0.88, 1.25, 0.29, 0.25, 0.24 and 0.28 (MeqO2/kg). After 6 weeks of ripening, anisidine value of T6 and T7 were 6.55 and 6.14. Conjugated dienes of T1, T2, T3, T4, T5, T6...

The objective of the study was to evaluate the anticancer activity of water-soluble peptide (WSP) extracts of buffalo and cow milk Cheddar cheeses during their ripening. The WSP extracts were assessed for their effects on cell viability, cell cycle arrest and apoptosis induction using a lung cancer (H-1299) cell line. Cheese extracts taken after 120 and 150 ripening days showed marked growth inhibition of the cancer cells, in a dose-dependent manner. During cell cycle analysis, a significant increase in cells population at G 2 /M phase was observed in the lung cancer cell line at a rate of 400 lg/mL and 500 lg/mL. In addition, the extracts also induced extensive apoptosis in the lung cancer cell line.

This article aimed to assess the anti‐inflammatory and anticancer potential of water‐soluble peptide (WSP) extracts from buffalo and cow milk Cheddar cheeses. Anti‐inflammatory activity was evaluated on the basis of nitric oxide (NO) production in lipopolysaccharide‐stimulated macrophage (RAW‐264.7) cells. A cell viability assay, cell cycle arrest and apoptosis were performed to explore anticancer activity in a colon cancer model (HT‐29). The WSP extracts of both Cheddar cheeses effectively inhibited NO production in activated macrophages. Maximum growth inhibition was observed in the HT‐29 cells at concentrations of 400 and 500 μg/mL. A significant increase in cell population at G0/G1 phase of the cell cycle was observed. Moreover, the WSP extracts also induced extensive apoptosis in colon cancer cells.

The present study used descriptive sensory analysis (DSA) to compare Pizza cheeses prepared from various combinations of fresh Mozzarella and semi-ripened Cheddar cheeses and cooked under conventional and microwave cooking methods. A cheese sensory lexicon was developed, and descriptive sensory profiles of the Pizza cheeses were evaluated using a panel of semi-trained judges (n = 12). The following characteristics, flavor (cheddar, acidic, rancid, bitter, salty, creamy, and moldy), texture (stringiness, stretchability, firmness, and tooth pull), and appearance (meltability, oiliness, edge browning, and surface rupture) of Pizza cheeses were analyzed and compared with control samples. The sensory analysis of Pizza cheeses showed more preference toward a higher level of ripened Cheddar cheese (4 months), which was cooked using the microwave. However, the scores for texture properties were decreased with the addition of the semi-ripened cheese. The scores for stretchability and tooth pull were high in the microwave cooked samples compared with the conventionally cooked samples. The appearance attributes (meltability, oiliness, and edge browning) scores were increased with the increasing of ripened Cheddar cheese content while surface rupture was decreased. Microwave cooked Pizza cheese showed better meltability and oiliness but lower edge browning scores. The results showed that amalgamations of fresh Mozzarella and semi-ripened Cheddar cheese had a significant (p < 0.05) and positive effects on the sensory qualities of Pizza cheeses.

The present study was planned to evaluate anti-proliferative activity of water-soluble peptides (WSPs) extracts of Cheddar cheeses made with buffalo and cow milk using a colon adenocarcinoma cell line. Cheese extracts were prepared at different stages of ripening up to six months. Anti-proliferative activity of extracts was evaluated through cell viability assay, cell cycle arrest and apoptosis induction using colon cancer (HCT-116) cell line. A dose-dependent increase in activity was observed till five months of ripening. Cells population was relatively higher at G 0 /G 1 phase of cell cycle. Moreover, apoptosis induction was also observed in a dose-dependent manner.

The bioactive peptides released from cheeses have important physiological functions such as angiotensinogen converting enzyme (ACE)‐ inhibition, anti‐ oxidant, anti‐ thrombotic, anti‐ microbial, anti‐ cancer, and anti‐ inflammatory. These bioactive peptides can be produced from precursor milk protein during processing, enzymatic hydrolysis, microbial fermentation and gastrointestinal digestion.

BackgroundIn developing and developed countries, several versions of safe and shelf-stable Ultra High Temperature, UHT-treated products are manufactured. Terminologies and formulations of UHT-treated tea whitener, milk and dairy drink considerably vary. Comprehensive studies have been performed on UHT-treated milk; however, fatty acids compositional changes and oxidation status of UHT-treated tea whitener and dairy drink at different storage intervals have not been reported in literature.MethodsUHT-treated tea whitener, milk and dairy drink samples (450 each) of the same manufacturing date were purchased from the market and stored at ambient temperature (25-30 °C) for 90 days. At the time of collection, all the samples were only one week old. Samples of UHT-treated tea whitener, milk and dairy drink were regarded as treatments and every treatment was replicated five times. Chemical composition, fatty acid profile, 2, 2-Diphenyl-1-picrylhydrazyle (DPPH) radical scavenging activity, total antioxidant activity, reducing power, antioxidant activity in linoleic acid system and induction period were determined at 0, 45 and 90 days of storage.ResultsFat content in freshly collected samples of UHT treated-tea whitener, milk and dairy drink were 6 and 3.5%. UHT treated milk had highest total antioxidant capacity, antioxidant activity in linoleic acid and 2, 2-Diphenyl-1-picrylhydrazyle (DPPH) free radical scavenging activity followed by UHT tea whitener and dairy drink. In freshly collected samples of UHT-treated milk, concentrations vitamin A and E were 0.46 μg/100 g and 0.63 mg/100 g, respectively. UHT-treated tea whitener had the lowest concentrations of vitamin A and E. With the progression of storage period, amount of vitamin A and E decreased. In freshly collected samples, amount of short, medium and unsaturated fatty acids in UHT-treated milk were 10.54, 59.71 and 27.44%, respectively. After 45 days of storage of UHT-treated milk, the loss of short, medium and unsaturated fatty acid was 7%, 7.1 and 5.8%, respectively. After 90 days of storage of UHT-treated milk, the loss of short, medium and unsaturated fatty acid was 8.53, 13.51 and 11.88%, accordingly. After 45 days of storage of UHT-treated tea whitener, the loss of medium and unsaturated fatty acid was 1.6 and 0.99%, respectively. After 90 days of storage, the loss of medium and unsaturated fatty acids were 8.2 and 6.6%, respectively. The induction period of fresh UHT-treated tea whitener, milk and dairy drink was 15.67, .74 and 7.27 h. Strong correlations were recorded between induction period and peroxide value of UHT-treated products.ConclusionThis investigation disclosed that UHT-treated tea whitener had 6% fat content with no short-chain fatty acids. Antioxidant capacity of UHT-treated milk was higher than dairy drink and tea whitener. Due to the presence of partially hydrogenated fat, oxidative stability of UHT-treated tea whitener was better than UHT-treated milk and dairy drink. Vitamin A and E was not found in UHT-treated tea whitener. For the anticipa...

Flaxseed oil was fractionated at −40°C, filtrate was designated as olein fraction (31% yield), which was further fractionated at −60°C, and filtrate was named as super olein fraction (17% yield). Flaxseed oil, olein, and super olein fractions were stored at 25°C–30°C for the duration of 90 days. Alpha linolenic acid in flaxseed oil, olein, and stearin fraction was 55.26%, 63.47%, and 71.61%. High‐performance liquid chromatography (HPLC) characterization showed that phenolic compound was concentrated in olein and super olein fractions. In super olein fraction of flaxseed oil, concentration of gallic acid, protocatechuic acid, 4‐hydroxybenzoic acid, syringic acid, p‐coumaric acid, and ferulic acid was 8.14, 40.59, 75.38, 7.95, and 9.27 mg/100 g. Total phenolic contents of flaxseed oil, olein, and super olein were 145, 185, and 247 mg GAE/100 g. Peroxide value of 90 days stored flaxseed oil, olein, and super olein was 0.59, 0.75, and 0.96 (MeqO2/kg) with no difference in color and flavor scores. Practical applications Several fractions of palm oil and milk fat are commercially produced for large number of industrial applications. However, fractionation of flaxseed oil is not previously performed, and chemical characteristics of olein and super olein fractions of flaxseed oil are not reported in literature. In this study, olein and super olein fractions of flaxseed oil were produced by dry fractionation. Super olein fraction revealed more than 70% alpha linolenic, higher magnitude of phenolic compounds than parent flaxseed oil, with reasonable oxidative stability and acceptable sensory attributes. Olein and super olein fraction of flaxseed oil may be conveniently used for the supplementation of large number of food products.