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- MakaleYalnız künye2026Effects of Dietary Fibers Obtained from Cold-Press By-products on the in vitro Digestion of Spirulina
Berktas, Serap
This study aimed to investigate the effects of dietary fibers obtained from cold-pressing by-products on the bioactivity of Spirulina (SP) during in vitro digestion. For this purpose, insoluble dietary fibers (CCDL and KCDL) were extracted from cold-pressing by-products of flaxseed and black cumin. SP was combined with CCDL and KCDL, and subjected to an in vitro digestion protocol (INFOGEST). The results showed that the total phenolic content of SP decreased after oral and gastric digestion with the addition of dietary fiber. After small intestinal digestion, the total phenolic content increased. Antioxidant activity values (DPPH and ABTS) decreased in the presence of dietary fiber, while chlorophyll values increased after small intestinal digestion. In particular, in the presence of CCDL, the chlorophyll content increased from 1.61 mg g(-1) to 4.48 mg 2 g(-1) after small intestinal digestion. Furthermore, the bioactivity values of SP after in vitro digestion varied depending on the type of dietary fiber. While KCDL was effective in increasing phenolic compound content, CCDL was more effective in increasing chlorophyll content. Considering the bioactivity values of SP after oral, gastric, and small intestinal digestion, it was determined that the values increased especially in the small intestine. This highlights the possibility that the bioaccessibility and therefore the bioavailability, of SP can be increased through the incorporation of dietary fiber. The addition of bioactive compounds to the development of functional foods rich in dietary fiber has advantages for the food industry in terms of designing and improving healthy foods. This study emphasizes that the in vitro digestion of Spirulina is regulated in the presence of CCDL and KCDL, and that the addition of dietary fibers may contribute to the potential health benefits of Spirulina.
- MakaleAçık Erişim2020The Effects of Boron (Orthoboric Acid) Supplementation into Diets on Serum Lipid and Protein Profiles of Hens During Late Laying Period
Kaya, Hacer; Macit, Muhlis
This study was carried out to determine the effects of boron addition into the diets on serum parameters of hens. A total of 288 Lohman laying commercial hybrid chickens of 62 weeks were fed for 12 weeks with four different rations containing basal feed 0 (B0), 50 (B50), 75 (B75) and 150 (B150) mg / kg B. Each group was replicated in 18 cages, four hens per cage. During the study, 16 hours lighting program was applied, feed and water were given as ad-libitum. The effect of boron supplementation was not significant on the rates of diacylglycerol and hydrocarbon+cholesterol esters (P>0.05) but the rates of polarlipid, triacylglycerol (P<0.05), and serum total cholesterol (P<0.01) were found significant. Lipid peroxidation values of groups fed with diets including 75 and 150 mg/kg B were determined lower than others. Addition of ration B affected different molecular weight proteins at different levels. In conclusion, it has been determined that the addition of B at different levels into the diets of laying hens during late laying period significantly influenced the serum lipid peroxidation, serum lipid and serum protein profile, but further researches are needed to clarify the changes related to the effects of B addition into diets on mentioned parameters of laying hens.
- MakaleYalnız künye2017Determination of Yield, Yield Components and Some Quality Traits in Some Two-Rowed Barley (Hordeum vulgare conv. distichon) Varieties Grown in Bafra Plain
Sirat, Abdulveli; Sezer, Ismail
This research was carried out with 12 of two-rowed barley varieties (Fahrettinbey, Cumhuriyet-50, Ozdemir-05, Kalayci-97, Cildir-02, Ince-04, Efes-98, Erciyes, Cumra-2001, Sladoran, Tarm-92 and Tokak-157/35) under Bafra Plain ecological conditions in Randomized Complete Block Design with four replications during 2007-2008 and 2008-2009 growing seasons. In this research, durations of heading and maturity, plant height (cm), spike number per m(2), spike length (cm), grain number per spike, grains weight per spike (g), harvest index (%) and grain yield (kg/da), the quality characteristics such as grain largeness ratio (%), 1000-grains weight (g), test weight (kg) and crude protein ratio (%) were investigated. Significant differences were found between genotypes for all investigated agronomic characteristics. According to the results of the 2 years; the highest grain yield obtained from Fahrettinbey (623.66 kg/da), Sladoran (596.41 kg/da) and Cumra-2001 (579.32 kg/da) varieties, the lowest grain yield obtained from Cildir-02 (409.15 kg/da) and Ozdemir-05 (425.44 kg/da) varieties. The highest 1000-grains weight, test weight and grain largeness ratio were found in Fahrettinbey, Sladoran and Cumra-2001 varieties (49.84, 47.97 and 47.32 g; 70.76, 70.61 and 69.58 kg; % 92.00, 90.25 and 90.75, respectively). Cildir-02 and Efes-98 varieties had the highest crude protein ratio (11.74 and 11.69 %), the shortest plant height was obtained from Sladoran variety (96.42 cm). The result of this study, when considered in terms of yield and quality characteristics, It has been found that Fahrettinbey, Sladoran and Cumra-2001 cultivars, appeared as promising genotypes for the conditions in Bafra Plain than other cultivars
- MakaleYalnız künye2014Determination of Malting and Forage Barley (Hordeum vulgare L.) Cultivars Suitable for Middle Black Sea Region Conditions
Sirat, A.
This research was carried out with aiming to determine some quality traits (thousand kernel weight, hectoliter weight, grain largeness ratios, crude protein content and extract content) of 6 barley varieties (two-row; Balkan-96, Serifehanim-98, Anadolu-98 and six-row; Meric, Avci-2002, Lord) in the growing seasons of 2008-2009 and 2009-2010 in Samsun (Gelemen) and Amasya (Gokhoyuk) locations according to randomized complete block design with four replicates. According to the research conducted in 2 locations for 2 years; the highest results of thousand kernel weight were obtained from Anadolu-98 (46.8 g) and Balkan-96 (44.8 g) varieties. The highest grain largeness ratios and extract content were obtained from Balkan-96 (90.1% and 77.7% respectively) varieties. The highest results of hectoliter weight were obtained from ?erifehanim-98 (69.0 kg), Anadolu-98 (68.0 kg) and Balkan-96 (67.6 kg) varieties. In addition, the highest crude protein content was obtained from Lord (13.1%), Meric (13.0%) and Avci-2002 (12.8%) varieties. Balkan-96 showed the least crude protein content (11.6%).