scholarly journals Partial substitution of sucrose by non-nutritive sweeteners in sour orange marmalades: effects on quality characteristics and acute postprandial glycemic response in healthy volunteers

2021 ◽  
Vol 5 (11) ◽  
pp. 1-9
Author(s):  
Ameni Belkacem ◽  
Inès Ellouze ◽  
Hajer Debbabi
Keyword(s):  
Healthy Volunteers ◽  
Control Sample ◽  
Sensory Properties ◽  
Partial Substitution ◽  
Microbiological Analysis ◽  
Glycemic Response ◽  
Added Sugars ◽  
Safety Standards ◽  
Nutritional Benefits ◽  
Cie Lab

Background: Overconsumption of added sugars, particularly refined sugars, has been shown to be associated with adverse health concerns. Aim: The present study aimed to elaborate calorie-reduced marmalades with nutritional benefits as well as satisfactory sensory properties, in order to reduce sugar intake without compromising consumers' acceptance. Materials and methods: Two formulas of sugar-reduced marmalades were elaborated by substituting 30% of sucrose with different commercial non-nutritive sweeteners: a blend of aspartame-acesulfame-K and sucralose. Physico-chemical, sensory, and microbiological analyses were carried out, in comparison with control sample marmalade. Blood glucose concentrations were determined in 12 healthy volunteers, at 30-min intervals until 120 min after consumption of marmalades. Results: Marmalade quality characterization revealed a significant effect of sucrose substitution on dry extract, Brix, reducing sugars, aw, and CIE Lab color parameters, but not on pH and acidity. The microbiological analysis highlighted that marmalades’ sanitary quality was in accordance with safety standards. Interestingly, sensory analysis by trained panelists showed that the substitution of sucrose by an intense sweetening substance did not impair the sensory properties. Our data also indicate that consumption of calorie-reduced marmalades significantly reduced acute postprandial glycemic responses in healthy volunteers; this effect was more pronounced with sucralose. Conclusions: Taken together, our results showed that the use of sucralose can constitute a relatively healthy choice for food basket of families, in particular for those with high risk of lifestyle-related diseases. Keywords: Citrus marmalade, Aspartame-acesulfame-K, Sucralose, Calories reduction, Quality, Glycemic response.

scholarly journals Comparative Study on the Proximate Composition, Functional and Sensory Properties of Turmeric (Curcuma longa) and Pawpaw (Carica papaya) Custard Products

2019 ◽  
pp. 1-11
Author(s):  
Nkiru E. Odimegwu ◽  
Collins N. Ubbaonu ◽  
Chigozie E. Ofoedu ◽  
Linda O. Akajiaku ◽  
Njideka E. Njoku ◽  
...  
Keyword(s):  
Comparative Study ◽  
Proximate Composition ◽  
Carica Papaya ◽  
Corn Starch ◽  
Curcuma Longa ◽  
Control Sample ◽  
Food Product ◽  
Sensory Properties ◽  
Contamination Level ◽  
Microbiological Analysis

Aim: To advance the creation of variety through food product development and innovation, a comparative study of custard products with Turmeric (Curcuma longa) and Pawpaw (Carica papaya) was done. Study Design: This study was made to fit into a one way Analysis of Variance. Place and Duration of Study: The research was carried out at the Department of Food Science and Technology laboratory, Federal University of Technology, Owerri, Nigeria, between March 2017 and August 2018. Methodology: Different ratios of corn starch to pawpaw or turmeric were used in the custard product while a commercial custard product was used as the control. The samples were evaluated for proximate composition, microbiological analysis, functional and sensory properties. Results: The water absorption capacity (1.44% to 1.64%), swelling index (5.27% to 6.77%), bulk density (0.68% to 1.55%) and gelation concentration (6.47% to 8.62%) of the turmeric treated custard and pawpaw treated custard were significantly different (P<0.05) from the control sample. The pawpaw treated custard had a higher protein and ash content compared to turmeric treated custard and control. With regards to the general acceptability of the custard products, the control was much accepted while the pawpaw sample was moderately accepted by the panellist. Microbial result showed that the pawpaw treated custard had an acceptable level of Streptococcus spp. The contamination level in the pawpaw treated custard, turmeric treated custard and the control were below the safety level recommended by International Microbiology Standard Limits for pseudomonas spp. Conclusion: The development of these custard products showed that pawpaw treated custard is acceptable and may compete favourably in the market since it has better aroma than some commercial custard present in Nigeria. It is also important to pay close attention to the handling and processing of these products so as to promote food product safety.

scholarly journals Effect of Soybean, Sorghum and African Breadfruit Flours on the Proximate Composition and Sensory Properties of Chin-Chin

2020 ◽  
pp. 85-98
Author(s):  
Ruth Ginika Ugwuanyi ◽  
John Ikechukwu Eze ◽  
Ebele Christiana Okoye
Keyword(s):  
Wheat Flour ◽  
Proximate Composition ◽  
Control Sample ◽  
Sensory Properties ◽  
Crude Fiber ◽  
Partial Substitution ◽  
Nutrient Contents ◽  
Overall Acceptability ◽  
Crude Fiber Content ◽  
African Breadfruit

This work investigated the proximate and sensory properties of chin-chin from the flour blends of wheat, African breadfruit, soybean, and sorghum. Chin-chin was produced from the blends of wheat: African breadfruit (BWF), wheat: soybean (SWF) and wheat: sorghum (SGW) in the ratios of 80:20, 70:30 and 60:40 for each blend and coded as BWF1, BWF2, BWF3 and SWF1, SWF2, SWF3 and SGW1, SGW2, SGW3 respectively. The control was 100% wheat flour (100:0) coded as WF. The proximate composition and sensory properties were determined. The results obtained show that partial substitution of wheat flour with breadfruit, soybean and sorghum flours caused a significant (p < 0.05) increase in the proximate composition of the samples. The crude protein content of samples BWF, SWF and SGW ranged from 15.73 to 19.34%, 19.2 to 24.62% and 9.11 to 10.73% respectively. The ash content of the samples ranged from 0.68 to 1.27%, 0.95 to 2.16% and 1.06 to 1.26% respectively and the crude fiber content ranged from 0.42 to 0.91%, 0.25 to 0.91% and 0.43 to 3.73% respectively. While the control sample (WF) had 13.08% of protein, 1.96% of ash and 0.80% of crude fiber. In terms of the overall acceptability, the control sample (WF) had the highest score (8.10) when compared with fortified samples followed by BWF3 (7.00). Although the control sample (WF) had the least nutrient contents compared to the fortified samples, yet, it was the most preferred by the panelists.

scholarly journals Total and Partial Fat Replacement by Gelled Emulsion (Hemp Oil and Buckwheat Flour) and Its Impact on the Chemical, Technological and Sensory Properties of Frankfurters

Foods ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1681
Author(s):  
Carmen Botella-Martínez ◽  
Manuel Viuda-Martos ◽  
José Angel Pérez-Álvarez ◽  
Juana Fernández-López
Keyword(s):  
Emulsion Stability ◽  
Meat Products ◽  
Saturated Fat ◽  
Sensory Properties ◽  
Partial Substitution ◽  
Omega 3 ◽  
Promising Strategy ◽  
Total Fat ◽  
Hemp Oil ◽  
Buckwheat Flour

A gelled emulsion (GE) prepared with hemp oil and buckwheat flour was used to replace pork back fat in frankfurters. Five different formulations were prepared: control (with 35% pork back fat—SC), and the following four to achieve 25%, 50%, 75%, and 100% pork back fat substitution by GE (S1, S2, S3, and S4, respectively). Nutritional, technological, and sensorial characteristics of frankfurters were evaluated. Sausages containing GE presented a lower total fat content with a higher amount of polyunsaturated fatty acids, increased omega 3 content, and reduced saturated fat by up to 55%. The incorporation of GE did not significantly modify technological properties such as emulsion stability or lipid oxidation in spite of using vegetable oils highly susceptible to oxidation. The reformulation of the frankfurters presented a greater effect on the texture and sensory properties when GE was used as total substitution for the pork back fat (S4). When GE was used only as partial substitution for the pork back fat, sausages similar to control frankfurter were obtained. So this study demonstrated that the use of GE could be a promising strategy in the reformulation of healthier meat products.

scholarly journals Microbiological Stability of Rice Tart Stored at Ambient Temperature after Baking

2017 ◽  
Vol 6 (5) ◽  
pp. 41
Author(s):  
Nguessan Elise ◽  
Cisse Mohamed ◽  
Niyonzima Eugene ◽  
Sindic Marianne
Keyword(s):  
Staphylococcus Aureus ◽  
Storage Conditions ◽  
Aerobic Bacteria ◽  
Microbiological Analysis ◽  
End User ◽  
European Regulation ◽  
Bacteria Growth ◽  
Safety Standards ◽  
Consumer Safety ◽  
Microbiological Stability

Very popular in Belgium, rice tart is a hot pastry sold in bakeries. It is then consumed at home, for dessert or snack. This study is conducted to investigate the microbiological stability of this foodstuff, from the end of baking to end user by consumers. In this purpose, 108 rice tart samples were collected from each of seven bakeries in five Belgium provinces. Physico-chimical analysis in addition to microbiological analysis were carried out in accordance with the European Regulation EC 2073/2005 and with references methods, to enumerate the total microorganisms count, Staphylococcus aureus, Bacillus cereus as well as Enterobacteria, susceptible likely to contaminate the tarts during the production or after baking. Even when the results meet the microbiological safety standards immediately after baking in all bakeries implicated, a significant (p <0,05) increase of mesophilic aerobic bacteria (ranging from <1 to 7 log cfu/g) and B. cereus (> 3,7 log cfu/g) was observed during the storage at nonrefrigerated temperature (28 to 30°C). A post-baking recontamination and other parameters like an insufficient baking time or a non uniform distribution of the oven heat could explain the observed bacteria growth. The present study shows that most rice tarts investigated are microbiologically safe. However, the possible increase of bacteria load in this foodstuff attributable to the favorable aw, pH and temperature conditions, highlight the importance of applying good hygienic practices and compliance with storage conditions after baking to ensure consumer safety. 

scholarly journals Advanced Production Technology of Flour-Based Foods with Chlorella Concentrate

2020 ◽  
pp. 212-221
Author(s):  
Zenfira Bochkareva ◽  
Ekaterina Volshenkova
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Production Technology ◽  
Control Sample ◽  
Sensory Properties ◽  
Raw Material ◽  
Biological Value ◽  
Advanced Production ◽  
Industrial Samples

Introduction. Semi-finished products require various additives that increase shelf life, improve sensory properties, or decrease raw material costs. Unfortunately, most additives improve neither nutrition nor biological value of the finished product. The present research featured precooked thin pancakes fortified with a chlorella concentrate. This microalgal supplement with scientific-based healthy properties is a unique project of Russian developers. The chlorella concentrate possesses a balanced amino acid composition, vitamins, major nutrient elements, and dietary minerals. Therefore, it can improve the nutrient and biological value of the pancakes. Study objects and methods. The research featured laboratory and industrial samples of precooked pancakes. 3%, 6%, and 10% of the milk were replaced with chlorella concentrate. The quantitative ratio of the components was determined empirically to obtain pancakes of the optimal quality. The batter-making and baking technologies were traditional. The mixing of milk and chlorella concentrate caused no protein aggregation. Results and discussion. The obtained batter was similar with the control sample in viscosity. The sensory properties did not deteriorate. As the proportion of the concentrate increased, the color of the batter changed from pale green to bright green. The sample with 10% of chlorella concentrate had a distinct algae smell. After the milk was replaced with the chlorella concentrate in the amount of 3%, 6%, and 10%, the amino acid composition demonstrated the following changes. The amount of lysine increased by 4.36%, 8.54%, and 14.72%, respectively. The amount of tryptophan increased by 5.46%, 10.75%, and 18.37, respectively. The amount of methionine + cystine increased by 4.04%, 7.94%, and 13.61%, respectively. The introduction of chlorella concentrate raised the content of certain minerals and vitamins, e.g. iron, vitamins of β-carotene, and vitamin C. Conclusions. Chlorella concentrate improved the production technology of flour-based foods. Therefore, it helps to expand the range of this group of precooked products while improving their biological and nutrition value.

Water quality assessment for beach balneability on the beach Beira Rio - Porto Nacional – TO / Avaliação da qualidade das águas para balneabilidade na praia Beira Rio – Porto Nacional – TO

2021 ◽  
Vol 7 (6) ◽  
pp. 55661-55670
Author(s):  
Ângelo Ricardo Balduino ◽  
Salomão Rodrigues De Castro Filho
Keyword(s):  
Escherichia Coli ◽  
Water Quality ◽  
Leisure Activities ◽  
Health And Safety ◽  
Water Quality Assessment ◽  
Microbiological Analysis ◽  
Total Coliforms ◽  
Safety Standards ◽  
Bathing Waters ◽  
Favorable Conditions

The Tocantins River has abundant water resources and favorable conditions for recreational activities, with emphasis on the beautiful natural beaches formed along its length. However, it is worth noting that the main contact entertainment and leisure activities require specific health and safety standards for bathing purposes. This study evaluated the water quality of Praia Beira Rio, in Porto Nacional-Tocantins, in only one point. For this purpose, microbiological analysis was performed using indicators of total coliforms and Escherichia coli (E. coli) following the method described by APHA (2005). The monitoring results were compared with the parameters for bathing purposes defined in CONAMA Resolution 274/00. To detect and identify total coliforms and Escherichia coli, the Colilert technique was used. The Escherichia coli content was low, allowing bathing waters to be classified as their own, according to CONAMA Resolution No. 274/00, and subdivided into the "excellent" category. Therefore, according to the bacterial indicators of the Escherichia coli group, during the analysis period, the waters of Praia Beira Rio were within the standards for primary contact recreation.

scholarly journals Herbal Extracts for Ensuring Pork Meat Quality during Cold Storage

2017 ◽  
Vol 71 (6) ◽  
pp. 453-460 ◽  
Author(s):  
Ilze Grāmatiņa ◽  
Sanita Sazonova ◽  
Zanda Krūma ◽  
Līga Skudra ◽  
Līga Prieciņa
Keyword(s):  
Meat Quality ◽  
Control Sample ◽  
Meat Products ◽  
Antimicrobial Properties ◽  
Sensory Properties ◽  
Biologically Active ◽  
Pork Meat ◽  
Herbal Extracts ◽  
Chilled Pork

Abstract Oxidation and microbial spoilage have a negative effect on the quality of meat and meat products, causing changes in their sensory and nutritional properties. Herbs contain biologically active compounds, like phenols with antioxidative and antimicrobial properties. Phenols can be used as substitutes for commercial antioxidants to prevent lipid oxidation, thus maintaining the colour and flavour of the product. The aim of the study was to investigate the the potential use of herbal extracts in ethanol/water application for the maintenance of pork meat quality during storage. Four herbs growing in Latvia — nettle (Urtica dioica L.), lovage (Levisticum officinale L.), oregano (Origanum vulgare), and horseradish (Armoracia rusticana L.) were chosen for the study. An optimal ethanol concentration for the extraction of the phenolic compounds was obtained with ethanol 50%/water 50% concentration (v/v). Prepared herbal extracts were added to chilled pork to determine the quality of the pork during storage. Changes in meat quality and its sensory properties for chilled pork without extracts appeared on day 18 of storage. Negative changes in sensory properties of meat samples with nettle extract were observed on day 22 of storage, and with lovage, oregano, and horseradish extracts on day 32. Statistically significant differences (p ≤ 0.05) were observed for microbiological indices between pork samples with herbal extracts and the control sample.

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