scholarly journals QUALITY PARAMETERS OF SEMI-FINISHED SPONGE CAKE ENRICHED WITH PUMPKIN BY-PRODUCTS

2020 ◽  
Vol 14 (3) ◽  
Author(s):  
K. Khvostenko ◽  
Z. Goranova ◽  
T. Petrova
Keyword(s):  
Sensory Evaluation ◽  
Raw Materials ◽  
Control Sample ◽  
Quality Parameters ◽  
Sensory Properties ◽  
Pumpkin Seed ◽  
Sponge Cake ◽  
Chemical Content ◽  
Total Carbohydrates ◽  
By Products

Nowadays, there is growing demand for flour-based products that only contain natural ingredients and are highly nutritional. This tendency promotes further research to find new raw materials for their production. Using by-products of pumpkin processing is a promising way to solve this problem due to their chemical content. In this research, the physicochemical and sensory properties of sponge cake enriched with pumpkin seed powder in two different quantities (5% and 10%) have been studied. Sensory evaluation of sponge cakes with pumpkin seed powder has revealed very high consumer acceptance. It has been established that the semi-finished cake with 5% of pumpkin seed powder added decreased in volume (229.00±5.17cm3), compared with the control (255.00±5.07 cm3). Higher porosity was observed in the control sample (65.62±1.41%) and in the sample with 5% of pumpkin seed powder added (64.20±1.00%). The water-absorbing capacity of the control sample (312.60±3.15%) was the lowest, compared with that of the samples containing 5 and 10% of pumpkin by-products. The lowest values of the crust chroma were in the cake samples containing 10% of pumpkin seed powder. The colour of the crust and crumb in the control was similar to that in the cake with 5% of pumpkin seed powder. An increase in the proportion of pumpkin seed powder from 0 to 10% resulted in an increase in the protein content, fibre, and total carbohydrates. The cake samples with 10% of pumpkin seed powder were the highest in protein (14.77%), fibre (2.76%), and total carbohydrates (75.15%). The results of sensory evaluation have shown that the semi-finished sponge cake enriched with 10% of pumpkin seed powder had better sensory properties, a more acceptable shape, smell, texture of the crumb, colour, and taste, compared with other samples.

scholarly journals Physicochemical Properties of Sponge Cake Fortified by Olive Stone Powder

2020 ◽  
Vol 2020 ◽  
pp. 1-11 ◽  
Author(s):  
Raziyeh Jahanbakhshi ◽  
Sara Ansari
Keyword(s):  
Phenolic Compounds ◽  
Control Sample ◽  
Sensory Properties ◽  
Fiber Content ◽  
Total Phenolic ◽  
Omega 3 ◽  
Color Analysis ◽  
Sponge Cake ◽  
Olive Stone ◽  
Batter Viscosity

Olive stones are by-products in olive oil extraction and in table olive industries. Nonetheless, they contain beneficial nutritive elements such as fiber, phenolic compounds, and omega-3 and -6 fatty acids. In this research, olive stone powder (OSP) was used to substitute 0, 15, 25, and 35% of wheat flour in sponge cake recipe. The effects of this substitution were examined on the physiochemical and sensory properties of sponge cakes. The fiber content and the total phenolic compounds of the cake samples increased significantly from 0.67 to 8.60% and from 89.14 to 739.23 μg/ml, respectively, by increasing the OSP from 0 to 35%. With increased amounts of OSP, batter viscosity and consistency decreased (from 27430 to 11030 centipoise and from 8.67 to 13.42 g/s, respectively), while the specific volume of the cakes increased (from 2.08 to 6.21 cm3/g). Parallel to the increased levels of substitution, the hardness and springiness of cakes decreased, whereas the gumminess and chewiness increased. The crumb structure of OSP-enriched cakes was more porous than that of the control. Color analysis indicated significant differences between the control and treated samples regarding L∗a∗, and b∗ parameters. Cakes had colors that were darker than expected when treated with OSP (p<0.05). According to sensory evaluations, no significant differences were observed between OSP cakes and the control sample in terms of taste, after taste, color, and odor (p>0.05). In conclusion, substituting OSP for flour by 25% can yield acceptable dietary fiber content and antioxidant phenolic compounds while showing no undesirable changes in sensory properties.

INFLUENCE OF FOOD BY-PRODUCTS ON THE COLOR OF BAKERY PRODUCTS

2019 ◽  
pp. 478-486
Author(s):  
Gjore Nakov ◽  
Vezirka Jankuloska ◽  
Ivan Dimov ◽  
Ira Taneva
Keyword(s):  
Image Analysis ◽  
Digital Image ◽  
Digital Image Analysis ◽  
Control Sample ◽  
Colour Change ◽  
Grape Pomace ◽  
Colour Difference ◽  
Sponge Cake ◽  
Influence Of Food ◽  
By Products

The aim of this paper is to analyze the effect of replacing part of wheat flour (4, 8, 16, 24 and 32% for cookies and 4, 6, 8 and 10% for sponge cake) and to measure influence on the color of the cookies and the sponge cake with apple skin powder and grape pomace powder, respectively. The cookies were produced according to the AACC 10-50D method with some modifications, and the sponge cake was produced according to the method presented by Velioğlu et al., 2017 with some modifications. Digital image analysis and colorimeter were used to determine the colour change of the samples. Results show that by increasing food by-products (apple skin powder and grape pomace powder), the colour difference between the control sample and other samples was bigger. The colour of the sample measured by digital image analysis covers the entire sample and is more representative and more objective regarding colour measurement.

scholarly journals Effect of addition corn flour, millet flour and pumpkin seed flour on the properties of gluten-free gingerbread

2021 ◽  
Vol 845 (1) ◽  
pp. 012108
Author(s):  
P K Garkina ◽  
A A Kurochkin ◽  
D I Frolov ◽  
G V Shaburova
Keyword(s):  
Wheat Flour ◽  
Raw Materials ◽  
Control Sample ◽  
Gluten Free ◽  
Corn Flour ◽  
Pumpkin Seed ◽  
Complete Replacement ◽  
Seed Flour ◽  
Functional Orientation ◽  
Physicochemical Methods

Abstract This article presents the development of a recipe for gluten-free gingerbread using secondary raw materials and cereals that normalize the intestinal micro flora. The gluten-free gingerbread recipes included the following gluten-free raw materials: corn flour (CF), millet flour (MF), pumpkin seed flour (PSF). The formulation was used as gingerbread «Limon» of wheat dough as a control sample. Prescription gluten-free components and their ratio were selected based on the analysis of data from domestic and foreign sources, taking into account the functional orientation and consumer properties. Laboratory baking of gingerbread was carried out with a complete replacement of wheat flour in the recipe for a different ratio of gluten-free flour mixture CF:MF:PSF - 40:40:20 and 35:35:30. To evaluate the obtained gingerbread, organoleptic and physicochemical methods of analysis were used. The organoleptic properties and physicochemical properties of the control sample and samples of gluten-free mixtures were compared. It has been found that replacing wheat flour with a gluten-free flour mixture generally improves the properties of gingerbread. We determined the rational ratio of gluten-free flour ingredients for the production of gingerbread CF:MF:PSF - 35:35:30.

scholarly journals Influence of Low Glycaemic Index Sweeteners on Antioxidant, Sensory, Mechanical, and Physicochemical Properties of a Watermelon Jelly

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Susana Rubio-Arraez ◽  
Carme Benavent ◽  
María Dolores Ortolá ◽  
María Luisa Castelló
Keyword(s):  
Antioxidant Activity ◽  
Physicochemical Properties ◽  
Sensory Evaluation ◽  
Storage Time ◽  
Control Sample ◽  
Glycaemic Index ◽  
Sensory Properties ◽  
Equal Proportion ◽  
Similar Score ◽  
Instrumental Texture

The replacement of sucrose by new noncariogenic and low glycaemic index sweeteners (isomaltulose and tagatose) and the addition of natural watermelon juice in jelly have been assessed in terms of composition, texture, colour, antioxidant activity, microbiology, and sensory properties. These analyses were performed initially and after 15 days of storage. Furthermore, the values were compared with those obtained in the analyses of a commercial watermelon jelly. The results showed that the antioxidant activity increased with the storage time in the control sample and in samples combining isomaltulose and tagatose. In addition, noncariogenic and low glycaemic index sweeteners did not affect the instrumental texture. However, the colour changed, especially in the sample containing tagatose only. Finally, the dessert containing tagatose and isomaltulose in equal proportion achieved a similar score in the sensory evaluation as the commercial one, showing the feasibility of using these sweeteners to reformulate watermelon jelly.

scholarly journals Quality Parameters Of Wheat Bread Enriched With Pumpkin (Cucurbita Moschata) By-Products

2015 ◽  
Vol 19 (2) ◽  
pp. 3-14 ◽  
Author(s):  
Solvita Kampuse ◽  
Liene Ozola ◽  
Evita Straumite ◽  
Ruta Galoburda
Keyword(s):  
Total Content ◽  
B Value ◽  
Quality Parameters ◽  
Wheat Bread ◽  
Initial Increase ◽  
Loaf Volume ◽  
Carotene Content ◽  
Pumpkin Seed ◽  
Pumpkin Powder ◽  
By Products

Abstract Pumpkin processing into puree, juice, candied fruit and pumpkin seed oil results in large amount of by-products. Pumpkins are rich in carotenes, vitamins, minerals, pectin and dietary fibre. The aim of the current study was to evaluate effect of pumpkin pomace and pumpkin residue powder on wheat bread quality. The total content of carotenes was analyzed by spectrophotometric method. The initial increase of pumpkin residue addition indicated increase in loaf volume, which started to decrease at higher amounts. Sensory evaluation (appearance; surface, crust; porosity; texture, crumb; taste, and flavour) of wheat bread with pumpkin revealed very high consumer acceptance except sample with 50% pomace addition. Total carotene content and colour b* value in wheat bread increased by adding pumpkin by-products. It is recommended to add 5% and 10% of pumpkin powder and no more than 30% of pumpkin pomace (calculated per 100 kg of flour) to dough for production of wheat bread with pumpkin by-product additions.

scholarly journals RHEOLOGICAL PROPERTIES OF BISCUITS DOUGH WITH SPELT FLOUR

2021 ◽  
Vol 38 (2) ◽  
pp. 94-102
Author(s):  
KRAVCHENKO Mykhailo ◽  
ROMANOVSKA Olha ◽  
MARUSYAK Tetiana
Keyword(s):  
Shear Rate ◽  
Rheological Properties ◽  
Wheat Flour ◽  
Raw Materials ◽  
Control Sample ◽  
Viscosity Reduction ◽  
Sponge Cake ◽  
Sugar Mixture ◽  
The Stability ◽  
Rotary Viscometer

Background. The analysis of modern literature sources shows that the impro­vement of existing biscuit technologies is aimed primarily at the use of various non-traditional raw materials to regulate the nutritional value and increase the stability of sponge dough during production and baking.Thus, the production of biscuits from spelt flour is one of the most promising areas of its use, as it meets the technological properties of this type of product. The aim of the work is to study the rheological properties of sponge dough from a mixture of premium wheat flour and spelt flour. Materials and methods.The object of the study is the dough for the main biscuit and with the replacement of 10, 20, 30, 40, 50 % of high-grade wheat flour (HGWF) with spelt flour (SF). The study was performed on a rotary viscometer Reotest-2 on a system of cylin­ders S, S3 at a temperature of 20 °C. Shear stress and viscosity are calculated by formulas for the corresponding values of shear rate. The whipping of the sponge dough was defined as the ratioof thevolume of the egg-sugar mixture after beating to the volume of the mixture after adding the flour mixture and stirring for 15 с(%). The stability of the sponge dough (SSD) with the addition of flour mixtures was determined as the ratio of the height of the foam after aging for 15· 60 сat a temperature of 18–20 °C to the total height of the foam column of the sample, expressed as a percentage. Results. The study found a general trend to reduce the viscosity of sponge dough for test specimens depending on the shear rate relative to control. Thus, for the studied shear deformations from 0.167 c-1 to 24.3 c-1, the viscosity of the sponge dough of the control sample decreases from 55.50to 3.26 Pa ∙ с. Replacing wheat flour with spelt flour in the amount of 10 to 50 % helps to reduce the viscosity of sponge dough from 55.50 to 1.55 Pa ∙ с. When studying the dependence of the effective viscosity of the dough for the main biscuit on the content of SF at a fixed shear rate of 24.3 c-1, two areas were identified –in the range of 0–30 and 30–50 % replacement of wheat flour for SF, for which there is a different intensity of viscosity reduction: by 38.3 and 2.4%, respectively. The increase in the stability of sponge cake dough by 3.6–43.6% in the studied samples with respect to control was due to the addition of spelt flour. Conclusion. The use of spelt flour in the composition of the main sponge cake helps to reduce the viscosity, but increases the whipping and stability of the biscuit dough, which is positive for the subsequent molding and baking.

scholarly journals Evaluation of Fish Raw Materials as a Way to Increase the Information Content of its Characteristics

2019 ◽  
pp. 660-670
Author(s):  
Tamara Safronova ◽  
Ekaterina Panchishina ◽  
Victoria Kraschenko ◽  
Yuliya Karpenko
Keyword(s):  
Information Content ◽  
Sensory Evaluation ◽  
Muscle Tissue ◽  
Raw Materials ◽  
General Information ◽  
Sensory Properties ◽  
Raw Material ◽  
Verbal Description ◽  
Oncorhynchus Keta ◽  
Experimental Conditions

Introduction. The research features a detailed sensory evaluation of mass fishing objects belonging to different families, namely: the Macrouridae represented by the giant grenadier (Albatrossia pectoralis), the Herrings represented by the Pacific herring (Clupea pallasii), and the Salmons represented by the Keta salmon (Oncorhynchus keta). The research objective was to study the possibility of increasing the information content of the verbal description of fish raw materials in combination with a quantitative assessment of individual sensory indicators. Research objects and methods. The paper introduces the concept of detailed verbal description of group parameters of raw and heattreated muscle tissue. The description can increase the information capacity of sensory studies. The concept of extended description of fish raw material was added to the main sensory properties that describe color, smell, taste, and consistency. They include data on the properties of local areas with subcutaneous layer, dark muscles, fat layers, etc. Such a detailed verbal description gives an in-depth view of the sensory properties, which is part of general information on the functional and technological properties of the fish and a key factor in designing new developed products. To improve the objectivity of sensory research, the authors employed the method of quantitative evaluation. Results and discussion. The results were summed up as data on the significance coefficients established by experts, ranked, and expressed as a percentage. The significance coefficient is a method of quantitative regulation of the share of each sensory indicator in the general sensory evaluation. The research showed that the greater the number of group sensory indicators that characterize the object, the smaller and more similar their coefficients of significance, which dramatically reduces application opportunities. Therefore, significance coefficient proved a convenient means of measurement and visual presentation. However, the research was limited by the experimental conditions. Conclusion. The study of the fish raw materials established, identified, and described individual sensory indicators that involved about twenty lexical units for raw material and thirty units for heat-treated muscle tissue. The individual sensory indicators characterized color, smell, and taste. They differed in the presence of several degrees of gradation and fit into a vertical three-level (sometimes two-level) classification. Group touch indicator of the consistency describes mostly single-level unit indicators with 4–6 lexical units. As a result, the detailed description of sensory properties of fish raw materials included 2–3 times more lexical units compared to the traditional description of fish raw materials in the special reference literature.

scholarly journals Effect of Alkali-Salt Treatment of Meat By-Products on Physical, Chemical and Rheological Properties

2020 ◽  
Vol 9 (3) ◽  
pp. 3221-3224
Keyword(s):  
Treatment Time ◽  
Raw Materials ◽  
Binding Capacity ◽  
Control Sample ◽  
Sharp Decrease ◽  
Alkali Concentration ◽  
Protein Loss ◽  
Water Binding ◽  
Alkali Salt ◽  
By Products

Meat by-products, in particular collagen-containing, are one of the promising types of animal raw materials. Treatment of these by-products with acids will improve the physicochemical and technological properties. The beef rumen treated with an alkaline-saline solution to determine the loss of collagen and non-collagen proteins, change the water-binding capacity and structural-mechanical characteristics. The protein loss increases up to 1.1 times with increasing of treatment time from 0.5 to 2 days at an alkali concentration of 1.0% and 1.67 times at 0.5 % concentration of sodium hydroxide. Accordingly, a sharp decrease in the shear stress was determined. The water-binding capacity of the product increased from 54% in control sample to 86.33%.

scholarly journals Optimization of the Process for Production of Enriched Ketchup

2021 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
Elisa Basika ◽  
Julia Kigozi ◽  
Guston Tumuhimbise
Keyword(s):  
Sensory Evaluation ◽  
Fruits And Vegetables ◽  
Control Sample ◽  
Chemical Properties ◽  
Sensory Properties ◽  
Holding Time ◽  
Processing Conditions ◽  
Value Addition ◽  
Physico Chemical ◽  
Tomato Ketchup

Post-harvest losses of fruits and vegetables in Uganda are estimated at 30% which is approximately 4 billion shillings lost annually. This is due to limited knowledge on value addition and preservation technologies being unaffordable. This study sought to add value to fruits and vegetables with a focus on mangoes, tomatoes, and carrots produced locally. The study determined the effect of processing conditions and addition of fruits and vegetables on the physico-chemical and sensory properties of tomato ketchup. Tomatoes were replaced with mangoes in increments of 10% up to 50% while keeping carrot levels constant at 5%. The best sensory properties were observed in the treatment that contained 15% mango. The Physico-chemical and sensory properties of ketchup were enhanced by the addition of fruits and vegetables up to 20%. The sensory evaluation revealed that ketchup prepared by the addition of fruits and vegetables (local mangoes and carrots) was preferred as compared to the control sample at 0% mango. The color of ketchup was affected by the incorporation of mangoes and carrots and it was acceptable up to at 5% carrot and 15% mango including taste, appearance, flavor, mouthfeel and aroma. The best treatment was then subjected to different processing conditions at different holding times and temperatures of 5, 10 and 15 minutes at temperatures of 70, 75, 80, 85, 90 and 100 degrees Celsius respectively. The best conditions were observed to be between 80℃ and 85℃ and 10 to 15 minutes holding time. It was also evident that time and temperature had a significant (p<0.05) effect on the Physico-chemical properties of ketchup.

scholarly journals Total Content of Phenolics and Antioxidant Activity in Crispbreads with Plant By-product addition

2017 ◽  
Vol 38 (333) ◽  
pp. 24-31
Author(s):  
Daiga Konrade ◽  
Dace Klava
Keyword(s):  
Antioxidant Activity ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Raw Materials ◽  
Colorimetric Method ◽  
Control Sample ◽  
Total Content ◽  
Dry Weight ◽  
Total Phenolic ◽  
By Products

Abstract Vegetable processing in food industry results in significant amount of by-products – peel, mark, bark, seeds still rich in bioactive compounds. Apple, carrot and pumpkin peel and mark may be used for production of crispbreads as functional ingredients. The objective of this study is to investigate the stability of total phenolic content (TPC) and antioxidant activity after high temperature and short time (HTST) extrusion cooking of a wheat and rice-based crispbreads with addition of apple, carrot and pumpkin by-products obtained after juice extraxtion and dried. Raw materials for crispbread production were wheat flour, rice flour, wheat bran (72%, 24% and 4% respectively) with addition of microwave–vacuum dried by-product powder in different amount (5%, 10%, 15%, 20%). Extrusion process was performed by using a laboratory singlescrew extruder GÖTTFERT 1 screw Extrusiometer L series (Germany). Total phenolic content (TPC) was determined using the Folin Ciocalteu method. Antioxidant activity was evaluated by free radical 2, 2-diphenyl-1-picrylhydrazyl (DPPH) antioxidant scavenging activity using a modified colorimetric method. Comparing different raw formulations, it was observed that the TPC of the apple by-product flour was significantly higher (p < 0.05) than in carrot and pumpkin flour. TPC in cereal-based crispbread was 36.06±1.15 before extrusion and 13.90±1.01 mg GAEg-1 DW (milligram Gallic acid equivalent per 100 g of dry weight (mg GAE 100 g−1 DW) after extrusion. Addition of apple BPF increased TPC in crispbreads to 106.25±2.08, carrot BPF 84.73±3.45 and pumpkin BPF to 108.82±1.04 mg GAEg−1 DW. Antioxidant activity of control sample was 1.07±0.01mg TE (Trolox equivalents) g−1 DW but in samples with addition of 20% apple by-products, it reached 3.77±0.02 TE g−1 DW for samples wih 20% carrot by-products reached 2.52±0.03TE g−1 DW and for samples wih 20% pumpkin by-products reached 3.77±0.02 TE g−1 DW.

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