scholarly journals Effects of Sugar Substitution with “Stevianna” on the Sensory Characteristics of Muffins

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Jingrong Gao ◽  
Margaret A. Brennan ◽  
Susan L. Mason ◽  
Charles S. Brennan

Sugar is a main ingredient of muffins and other baked products, so removal or reduction of sucrose negatively affects product appearance, texture, and mouthfeel. The aim of this study was to investigate the colour, textural properties, and sensory characteristics of sugar replaced muffins made using stevianna in combination with cocoa powder and/or vanilla. Optimal results were obtained with 50% stevianna, leading to muffins similar to the control products and having a high level of acceptance in sensory evaluation. Sugar-free muffins (100% stevianna) were harder in texture and more compact in crumb compared to the control. Results from sensory evaluation also illustrated that 100% stevianna addition led to muffins with poorer acceptance, harder texture, and a drier mouthfeel when compared against the control. This study also investigated the use of cocoa powder and/or vanilla to mask the stevianna bitterness in terms of aftertaste.

2020 ◽  
Vol 2 ◽  
pp. 00008
Author(s):  
Titiek Farianti Djaafar ◽  
Dhea Cynthia Monika ◽  
Tri Marwati ◽  
Priyanto Triwitono ◽  
Endang Sutriswati Rahayu

<div>Cocoa powder is made from fermented cocoa beans which are separated from fat, grounded and sifted to produce a powder. The fermentation stage is an important stage in processing cocoa beans for chocolate flavor formation. The traditional fermentation done by farmer triggers fungal growth that can produce a toxin called mycotoxin. The use of lactic acid bacteria in cocoa beans fermentation has been known to inhibit the growth of mycotoxin-producing fungi. The addition of Lactobacillus plantarum HL 15 as a culture starter has known as an antifungal.&nbsp; The objective of this research is to study the effect of Lactobacillus plantarum HL 15 as culture starter and fermentation box variation on microbiology, chemical and sensory characteristics of cocoa powder. Cocoa beans fermentation was conducted by starter culture addition and without starter culture addition and then using a new fermentation box and old fermentation box. The analysis of cocoa powder was carried out include water content, pH, fungi contamination, and sensory evaluation on color, flavor and taste of the cocoa powder. The result showed that water content (3.85 % to 4.55%), pH (4.85 to 4.95), and sensory evaluation is not significant differences for all treatment. The addition of Lactobacillus plantarum HL 15 as a culture starter in old and new fermentation boxes has a smaller lever of fungi contamination compare to the treatment without Lactobacillus plantarum HL 15 as culture starter.</div>


Author(s):  
هالة قنديل أبوبكر أحمدون ◽  
مواهب أحمد محمد المليح

This work has been carried out in order to determine the weight structure of both; shrimp )penaeus menodon ) and species (Caranx mate) belong to jack family, to find out the ratio of loss of unconsumed part and compare the microbial infections and nutrients of shrimp and jack powder after the different treatments. bacteriological and chemicals composition test carrying out, to find the total microbial count and the presence of Salmonella species, nutrient value such as fats, protein, mineral, moistures, fat-to-protein ratio and calculation of calories value existing in samples, sensory evaluation was also performed. The study showed that the unconsumed part of the fish %53.23 is higher than the shrimp's % 42.08 which equivalent the half production. Microbe test of the samples showed that shrimp and jack were contaminated with considerable numbers of bacteria, however, after drying, the total number was (10 > Cell forming unit). All samples, before and after treatment, were free of Salmonella. Also the results showed that difference between the two powders were significant in fat ratio; for the shrimp powder showed higher fat ratio, so its calorie value was higher. The results showed that difference between the two treatments in chemicals composition value for powders and there were no significant differences between the shrimp and fish waste powders, which were prepared in different ways in the sensory characteristics of shrimp and fish in different ways. The study has concluded that we can benefit from fish waste by manufacturing them into further good quality products that can be used for animal feed and further purposes.


Author(s):  
Monika Rahardjo ◽  
Kristiawan Prasetyo Agung Nugroho ◽  
Greis Saibele

This research aims to analyze the physical and sensory characteristics of cookies’ formulations using mocaf-oats-rice bran’s flour mixture. Five formulations used in this research consist of mocaf-oats-rice bran’s flour mixture namely F1 (100%-0%-0%), F2 (70%-15%-15%), F3 (50%-25%-25%), F4 (30%-35%-35%), and F5 (0%-50%-50%). The result showed that all cookies formulation included in the category of “high fiber” except for cookies Formulation 4. The highest value of hardness was cookies Formulation 1 and significantly different from the other formulations. Decreasing mocaf flour composition in the mixture and increasing additional oats and rice bran composition have a significant correlation on cookies’ hardness. Based on sensory evaluation using rating preference, it was found that the highest rating for color, texture, and overall parameters obtained by cookies Formulation 4, while the highest rating for taste parameter obtained by cookies Formulation 5. Cookies’ formulation that recommended to use as utilization of mocaf flour was Formulation 4 because it had the highest rating for overall parameter, as well as highest rating for color and texture.


2019 ◽  
Vol 57 (4) ◽  
pp. 503-512
Author(s):  
Karolina Brkić Bubola ◽  
Marina Lukić ◽  
Igor Lukić ◽  
Olivera Koprivnjak

This study investigates the effect of industrial scale filtration of fresh monovarietal virgin olive oil from Buža and Istarska bjelica cultivars on their volatiles, total phenols and sensory characteristics, and compares the oil samples clarified by filtration with those clarified by natural sedimentation/decantation after six months of storage. Filtration had a different effect on volatiles from the oil samples obtained from different cultivars. In the oil from Buža cultivar immediately after filtration only the amount of (Z)-2-pentenol slightly increased, but in Istarska bjelica the oil filtration affected eight compounds (the amount of hexanal, (E)-2-pentenal, (Z)-3-hexenal, (Z)-2-pentenol and (Z)-3-hexen-1-ol increased, while of hexyl acetate, (E)-2-penten-1-ol and (E)-2-hexen-1-ol decreased). In fresh filtered oil from Buža cultivar a slight decrease of total phenols was observed, while in those from Istarska bjelica the decrease was sharp, causing a decrease in the pungency and bitterness. Sedimentation/decantation had advantages over oil filtration of both cultivars, due to improved effect on the preservation of the sensory profile and the level of total phenols. Tentative aroma profiles based on odorant series obtained from the odour activity values were compared to the actual olive oil sensory profiles. These results could have a high level of applications in the olive oil industry for the optimization of the technology for obtaining monovarietal virgin olive oil with preserved specific and typical sensory characteristics, but also may serve experts to choose an appropriate virgin olive oil clarification method prior to analysis of volatile compounds.


Author(s):  
UBIRACIRA FERREIRA TISSOT ◽  
RUI CARLOS ZAMBIAZI ◽  
CARLA ROSANE BARBOZA MENDONÇA

Visou-se caracterizar física, química, microbiológica e sensorialmente o milho pipoca, produzido na serra gaúcha e comparálo com amostras comerciais importadas. Também caracterizou-se física e sensorialmente o milho pipoca após o processo de expansão. Os resultados evidenciaram grande similaridade entre as características de todas amostras, tanto para os grãos in natura quanto para os grãos expandidos. A maior diferença observada sensorialmente envolveu o atributo cor. Concluiuse que o milho pipoca produzido na região serrana do Estado do Rio Grande do Sul apresenta qualidade similar ao milho pipoca importado. Abstract The aim of the present work was to evaluate physical, chemical, microbiological and sensory characteristics of popcorn produced in the state of Rio Grande do Sul and to compare it with imported commercial samples. Physical and sensory evaluation were also performed in popcorn after expansion process. The results evidenced a great similarity among the characteristics of all samples as for grains in natura, and for all the expanded grains. The biggest sensorial difference observed was in relationship to the color attribute. It was concluded that the popcorn produced in Rio Grande do Sul showed similar quality to the imported popcorn.


Author(s):  
DB Nepali Karki ◽  
NP Roxas ◽  
Cessar C Sevilla ◽  
Romeo B Obedoza ◽  
VL Barraquio

A study was carried out from 1st July to 21st October 2003 at the Institute of Animal Science (IAS), University of the Philippines, Los Baños, College Laguna, Philippines. The study was based on the overall acceptability of substitution of sodium chloride by potassium chloride, frankfurters of broiler chicken and buffalo meat, which were prepared with or without garlic at 1:1 ratio. Frankfurters stored in chiller for over-night after the preparation (as fresh) and stored in freezer (-5 to -7°C) were taken out at 45 and 75 days for sensory evaluation. Ten experienced panelists were involved to evaluate sensory characteristics of frankfurters. Required amount of franks were cut into approximately 2.5 cm size and heated in microwave before serving to the panelists after randomly coding. Each panelist was served with four randomly allocated samples such that in each replication (block), two panelists were assigned. Juiciness, tenderness, color, flavor, off-flavor and overall acceptability were evaluated using the seven point Hedonic scale score card. Type of meat used and the storage period had significant influence in some of the sensory traits, such as juiciness, tenderness and color. Scores for juiciness and tenderness were significantly (P>0.05) higher with chicken franks. However, highly significant (P>0.01) difference was observed for color, favoring buffalo meat franks. Traits such as flavor and overall acceptability had higher scores for chicken than buffalo meat, although scores for offflavor had opposite values; higher with chicken, but was not significantly different. Sensory characteristics for stored products were scored lower than fresh. Color was influenced significantly (P>0.05) by meat type, salt, garlic and also storage period of 75 days. Meat type and storage interaction had significant (P>0.05) differences on juiciness, overall acceptability and tenderness. However, their effects as individual variable were not significant. When garlic was used at 2% level in combination with NaCl+KCl at 1:1 ratio the effectiveness was more pronounced from all respects. However, same percentage of garlic could not produce more acceptable franks with sodium chloride alone. All sensory parameters considered in the study were scored less either for 45 or 75 days storage than the fresh. However, statistically; except for off-flavor, no significant differences were observed between 45 and 75 days. Key words: Frankfurter, substitution, sensory evaluation, panelist, Hedonic scale, garlic J. Inst. Agric. Anim. Sci. 26:57-64 (2005)


1970 ◽  
Vol 8 (1) ◽  
pp. 153-160 ◽  
Author(s):  
M Khaliduzzaman ◽  
M Shams-Ud-Din ◽  
MN Islam

The present study was concerned with the preparation of potato flour with various treatments and to formulate the chapatti and biscuit incorporating potato flours were prepared by treating the raw potato slices as blanched, blanched plus potassium meta-bisulphite (KMS) treatment and one as control. Various substitution levels from 15 % to 30 % of potato flour was used in the formulations of chapatti and biscuit in conjunction with wheat flour. Chapatti and biscuit prepared with either blanched or blanched plus KMS treated sample of potato flour had very good physical and baking quality. And chapatti prepared with 20% potato flour and biscuit containing 25 % had the most suitable baking properties among other proportions. The statistical analysis of sensory evaluation data indicated that the baked products prepared with potato flour from blanched plus KMS-treated samples ranked very well and were more acceptable than those made from blanched sample. Keywords: Potato flour; Drying; Chapatti; Biscuit DOI: 10.3329/jbau.v8i1.6413J. Bangladesh Agril. Univ. 8(1): 153-160, 2010


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