scholarly journals Investigating the Effect of Spirulina Platensis Microalgae on Textural and Sensory Properties of Baguette Bread

Author(s):  
Somayeh Sanjari ◽  
Hamid Sarhadi ◽  
Fatemeh Shahdadi

Background: Spirulina platensis is a photosynthetic microalgae with fibrous filamentous that belongs to the cyanobacteria family. In this study, we investigated the effects of ethanol and methanol extracts as well as the powder of spirulina platensis microelements on the sensory and texture properties of the bread. Methods: In order to determine the texture characteristics, we applied a texture analyser and conducted the Texture Profile Analysis test (Double-Density Compression). Sensory evaluation (hedonic scale 1−5) of the samples was performed by 10 trained panelists. Results: The results showed that use of spirulina microalgae in the formulation of bread altered the tissue properties significantly compared with the control sample. Addition of the spirulina decreased the hardness of the bread compared to the control sample. Moreover, addition of the methanol extract resulted in the highest adhesiveness, while addition of ethanol extract and spirulina microalgae powder led to the highest springiness rate among the samples. The highest and lowest amounts of gumminess were observed in bread samples containing spirulina microalgae powder and control treatments, respectively. The control sample received the highest score regarding all of the sensory features. Samples with spirulina powder received the lowest sensory properties. Conclusion: We can produce spirulina fortified bread with desirable nutritional and sensory characteristics.

Foods ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 560
Author(s):  
Allah Bakhsh ◽  
Se-Jin Lee ◽  
Eun-Yeong Lee ◽  
Nahar Sabikun ◽  
Young-Hwa Hwang ◽  
...  

This study assessed the effects of Methylcellulose (MC) at different concentrations on plant-based meat analog (PBMA) patties, comprised of commercial texture vegetable protein (C-TVP) and textured isolate soy protein (T-ISP) as key ingredients, and compared to beef patty control. A significantly higher difference was observed in moisture content in control with increasing MC concentration than the C-TVP and T-ISP patties. However, protein varied significantly among three different protein sources, with control had higher protein content than PBMA patties. Crude fiber content recorded higher values in C-TVP as compared to control. Significantly lower pH values were recorded in control than C-TVP and T-ISP respectively. Regardless, with the addition of MC or ingredient PBMA and control patties tend to reduce lightness (L*) and redness (a*) value after cooking. Although control sample before cooking exhibits lighter and redder than PBMA patties (C-TVP and T-ISP). Likewise, water holding capacity (WHC) decreases as the concentration of MC increases (1.5–4%) in control and PBMA patties. Warner-Bratzler shear force (WBSF) and texture profile analysis (TPA), including hardness, chewiness, and gumminess of control, were significantly higher than C-TVP and T-ISP. Consequently, panelists’ in the sensory analysis presented that C-TVP patties containing 3% of MC had better sensory properties than T-ISP. Hence, PBMA patties with C-TVP and incorporation of 3% MC are considered ideal for manufacturing of meat analog as related to control (beef).


Meso ◽  
2020 ◽  
Vol 22 (3) ◽  
pp. 196-208
Author(s):  
Tomaž Polak ◽  
Lea Demšar ◽  
Katja Babič ◽  
Iva Zahija ◽  
Mateja Lušnic Polak

Consumers often mix pasteurised meat products from the subgroup of smoked meat with a subgroup of meat products known as canned meat. The aim of this study was therefore to determine their physicochemical parameters and sensory properties of smoked meat and canned meat subgroups of pasteurised meat products on the Slovenian market. Chemical analyses of the content of ash, sodium chloride and phosphates, thiobarbituric acid number (TBA), instrumental measurements of the proximate composition (NIR), colour (CIE L*, a*, b*) and texture (Texture Profile Analysis) as well as the evaluation of sensory properties (Descriptive Analysis Method) were performed on 33 products. The products of smoked meat had a higher content of protein, ash, total phosphates and sodium chloride than the products of canned meat. All products were oxidatively stable (low TBA number). The products of smoked meat were darker (lower L* values) and redder in cross-section (higher a* values), they were tougher, gummier, more difficult to chew, more cohesive and less elastic in texture (Texture Profile Analysis) than the products of canned meat. The panel of experts evaluated the products of both subgroups with a similar average overall impression. Compared to the products of the canned meat, the products of the smoked meat showed worse slice colour uniformity, they contained a higher level of gelatinised connective tissue on the slice, had a worse slice connectivity, the texture of a slice was firmer with coarser fibres, they were saltier, with a less pronounced metallic and rancid aroma and a more pronounced bitter, acidic and odd aroma. Chewiness, gumminess, cohesiveness, hardness and elasticity (texture parameters) loaded strongly on the quality parameters of all products (Factor analysis). Furthermore, linear discriminant analysis confirmed that the products of the subgroups smoked meat and canned meat differ in their physico-chemical and sensory profile.


2021 ◽  
Vol 74 (3) ◽  
pp. 9757-9761
Author(s):  
Stalin Santacruz Terán

The fresh cheese produced in the province of Manabí is an Ecuadorian artisan cheese. The processing conditions commonly do not comply Ecuadorian regulations, resulting in the presence of pathogenic microorganisms such as Salmonella. The high number of cases of Salmonellosis in the province of Manabí justifies the need to identify and control the possible sources of this pathogenic microorganism. In the present work, the effect of the addition of Lactobacillus acidophilus to fresh cheese was studied, by immersing it in a starch solution with 1x108 CFU mL-1 of L. acidophilus with further storage for 30 days at 4 °C. The pH, acidity, weight loss, instrumental firmness, number of CFU of mesophilic aerobic bacteria and acceptability of fresh cheese were analyzed. At the same time, a duo-trio analysis was carried out, followed by a satisfaction analysis with the participation of semi-trained panelists. The presence of L. acidophilus reduced the pH and acidity in the fresh cheese in relation to the control sample. Satisfaction results, on a five-point hedonic scale, which ranged from 1 (I dislike it very much) to 5 (I like it very much), showed that the cheese treated with L. acidophilus and the control sample received a rating between “I neither like nor dislike” and “I like it moderately”, with values of 3.63 for the treated sample and 3.50 for the control. The application of L. acidophilus did not affect the organoleptic acceptability of cheese and produced less changes in pH, acidity and weight loss during storage for 30 days at 4 °C in relation to the control sample.


2018 ◽  
Vol 15 (2) ◽  
pp. 35
Author(s):  
Normah Ismail ◽  
Rosliana Rosman

The purpose of this study was to investigate the effect of papaya leaves crude extract on the physicochemical properties of marinated chicken meat. Papaya leaves was extracted with sodium acetate (CH3COONa) buffer (pH 7.2) at room temperature. Protein concentration and activity of enzyme in the crude extract were determined by using UV-Spectrophotometer. The crude extract was mixed with marinated ingredients and then coated onto chicken meat which was subsequently kept for overnight in refrigerator at chill temperature. Protein concentration of the enzyme was identified as 166.36 μg/μl and enzyme activity was 1.28 CDU/ml. Results also showed that lightness (L*), cooking loss and shrinkage of the marinated chicken were higher than control. Redness (a*), yellowness (b*), protein content, water-holding capacity, shear force, and texture profile analysis were lower than control. Microstructure analysis showed that the chicken meat muscle was destructed in the presence of papaya crude extract. Sensory acceptability evaluation of marinated chicken which was carried out by using 9 point hedonic scale suggested that chicken meat treated with papaya crude extract gave significant effect on texture, juiciness, flavour and overall acceptability compared to commercial bromelain. Additionally, the use of papaya crude extract gave a significant effect on the physicochemical properties of marinated chicken.


2018 ◽  
Vol 55 (5A) ◽  
pp. 226
Author(s):  
Tu Viet Phu

Children are an important targeted consumer group of food and beverage industry nowadays, especially of dairy industry. Understanding children liking for sensory properties of a food product is the key for product development success. Pasteurised milk and UHT milk are two major choices for children drinking milk in Vietnamese market. The difference in production process of these two products, mostly the heating treatment, may occur differences in terms of sensory properties and by consequence affect children’s preference. The objectives of this study were then i) to verify ability of the 7-point facial hedonic scale in evaluating children preference of different age groups; and ii) to compare the degree of liking of pasteurised milk and UHT milk by children. 240 children aged from 4 to 13 participated to an acceptance test using 7-point facial hedonic scale. One pasteurised milk sample, one UHT milk sample and one UHT sweetened control sample collected from the market were tested. These 3 testing products belong to one local producer. Results showed that for all testing age groups children rated the control sweetened sample as the most favourite. This helps to justify that children of these ages are able to use the scale. There was no difference of children liking for tested pasteurised milk and UHT milk on all testing age groups. Possible sensory difference between these products is not resulted in preference differences among the testing children. Further results on the effect of age group, gender and general milk liking of children were also discussed. 


Foods ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 617 ◽  
Author(s):  
Ye-Na Kim ◽  
Syahrizal Muttakin ◽  
Young-Min Jung ◽  
Tae-Yeong Heo ◽  
Dong-Un Lee

The use of defatted soybean flour (DSF) in food as a source of dietary fiber has been limited due to its rough texture and bitter taste. Our previous work indicates that superfine DSF prepared by jet milling could overcome these problems, as it positively affected physical and sensory properties. Therefore, differently sized DSFs were incorporated in tofu, and their impacts on physical and sensory properties were investigated in this study. Coarse DSF (Dv50 = 341.0 µm), fine DSF (Dv50 = 105.3 µm), and superfine DSF (Dv50 = 5.1 µm) were prepared by conventional sifting and jet milling. Tofu was made with a 5% addition of differently sized DSFs and without DSF (control tofu). The quality of tofu was evaluated by scanning electron microscopy, color measurement, texture profile analysis, and quantitative descriptive analysis. The tofu made with coarse and fine DSF showed negative changes in its physical and organoleptic qualities, such as reduced yields, a less pure color, a harder texture, and a rougher mouthfeel. However, the tofu made with superfine DSF showed only minimal changes in its qualities compared to the control. Therefore, superfine DSF is a promising fiber supplement that does not change the physical and sensory properties in the making of high-quality tofu.


2021 ◽  
Vol 10 (11) ◽  
pp. e154101119404
Author(s):  
Elisângela Ramieres Gomes ◽  
Mariana Braga de Oliveira ◽  
Isis Rodrigues Toledo Renhe ◽  
Rodrigo Stephani ◽  
Antônio Fernandes de Carvalho ◽  
...  

The addition of buttermilk powder as partial fat replacer in yogurt formulations with constant dry matter was investigated. Three formulations of yogurt were produced containing 0% (T1), 1.36% w·w-1 (T2) and 3.34% w·w-1 (T3) of buttermilk powder in the final product. Particle size and pH variation were monitored during fermentation; scanning electron microscopy and texture profile analysis were performed in the final product. The control sample showed larger particle size on the day after production and at the end of fermentation, as well as a more compact network microstructure with a smaller average pore size. Compared to the prototypes with added buttermilk the control sample showed greater higher firmness. Buttermilk powder could act as fat replacer for yogurt but favors the formation of a less compacted network microstructure, with large pores, less springiness after 21 days, and less hardness in the two evaluated times (21 and 42 days).


2018 ◽  
Vol 15 (2) ◽  
pp. 35
Author(s):  
Rosliana Rosman ◽  
Normah Ismail

The purpose of this study was to investigate the effect of papaya leaves crude extract on the physicochemical properties of marinated chicken meat. Papaya leaves was extracted with sodium acetate (CH3COONa) buffer (pH 7.2) at room temperature. Protein concentration and activity of enzyme in the crude extract were determined by using UV-Spectrophotometer. The crude extract was mixed with marinated ingredients and then coated onto chicken meat which was subsequently kept for overnight in refrigerator at chill temperature. Protein concentration of the enzyme was identified as 166.36 μg/μl and enzyme activity was 1.28 CDU/ml. Results also showed that lightness (L*), cooking loss and shrinkage of the marinated chicken were higher than control. Redness (a*), yellowness (b*), protein content, water-holding capacity, shear force, and texture profile analysis were lower than control. Microstructure analysis showed that the chicken meat muscle was destructed in the presence of papaya crude extract. Sensory acceptability evaluation of marinated chicken which was carried out by using 9 point hedonic scale suggested that chicken meat treated with papaya crude extract gave significant effect on texture, juiciness, flavour and overall acceptability compared to commercial bromelain. Additionally, the use of papaya crude extract gave a significant effect on the physicochemical properties of marinated chicken.


2018 ◽  
Vol 7 (2) ◽  
pp. 17 ◽  
Author(s):  
Patience Chisa Obinna-Echem ◽  
Lucretia I Barber ◽  
Confidence I. Enyi

The nutrient and sensory properties of malted pre-gelatinized maize supplemented with varying amounts of soy and carrot flour was evaluated. The blends (Malted pre-gelatinized maize flour : Soy flour : Carrot flour) in grams were: A (80: 20: 0), B (73.125: 23.125: 3.75), C (66.250: 26.250: 7.50), D (65.625: 23.125:11.25), E (65: 20:15), F (63.125: 33.125: 3.75), G (63.125:25.625: 11.25), H (60: 25: 15) and I (100:0:0). There were significant (P ≤ 0.5) differences in the proximate composition of the blends. The moisture content ranged between 3.55 - 8.10%. The protein content of the samples increased (P ≤ 0.5) with the increase in soy substitution and varied from 11.61% for the control (sample I) to 21.53% for sample F. The fat, ash and crude fibre content of the blends varied from 1.68 - 10.86, 1.45 - 2.8 and 0.20 - 4.40% respectively. The control had significantly (P ≤ 0.5) the highest carbohydrate content of 75.61%, while it varied between 55.30 and 71.60 % for others. The energy values varied from 360.43 - 405.00 Kcal/g. The sensory scores were based on a 9-point hedonic scale, with 1 and 9 expressed as dislike extremely and like extremely. The assessors’ likeness for the sensory attributes (colour, texture, taste, aroma and general acceptability) was below neither like nor dislike. This study revealed that substitution with soybeans and carrot flours increased the nutrient composition of the malted pre-gelatinized maize, soybean and carrot flour blends. Particularly the soy flour as sample F with the highest soy flour substitution (33. 123g) had significantly the highest protein (21.53%), fat (10.86%) and energy (405 Kcal/g) values. This would be recommended for good quality porridge. Although, the sensory analysis revealed the need for further investigation on processing methods especially the malting process as to enhance the overall acceptability of the product. 


Foods ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 976
Author(s):  
Ima Wijayanti ◽  
Avtar Singh ◽  
Soottawat Benjakul ◽  
Pornsatit Sookchoo

The effects of Asian sea bass (Lates calcarifer) bio-calcium (ASBB) at different levels (0, 2, 4, 6, 8, and 10%) (w/w) on properties of threadfin bream (Nemipterus sp.) surimi gel were investigated. ASBB addition increased breaking force and deformation, while reduced expressible moisture content (p < 0.05) of surimi gel. L* (lightness), a* (redness), and b* (yellowness) values were increased with augmenting ASBB levels; however, whiteness slightly decreased in surimi gel incorporated with ASBB (p < 0.05). Higher likeness scores were noticed in surimi gel containing ASBB, compared to that of the control. However, a slight decrease in the likeness score was noticed in surimi gel with 10% (w/w) ASBB (p < 0.05). Surimi gel added with 8% (w/w) ASBB possessed the increase in breaking force by 80% from the control and had the highest likeness score. Texture profile analysis of surimi gel added with ASBB showed the improved texture characteristics with coincidentally higher storage modulus of surimi paste. Surimi gel with 8% (w/w) ASBB had a denser and finer microstructure with higher ash, calcium, and phosphorous contents, compared to the control. Thus, incorporation of bio-calcium up to 8% (w/w) not only increased mineral content, but also improved textural, sensory, and microstructural properties of surimi gel.


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