scholarly journals Microbial and Sensorial Quality of Ice Cream Fortified with Oyster (Crassostrea iredalei) Puree

2019 ◽  
Vol 7 (1) ◽  
pp. 295-299 ◽  
Author(s):  
JERSON C. SORIO ◽  
MARIETTA B. ALBINA
Keyword(s):  
Nutritional Value ◽  
Frozen Storage ◽  
Storage Period ◽  
Ice Cream ◽  
Sensory Attributes ◽  
Microbial Count ◽  
Overall Acceptability ◽  
Significant Difference ◽  
Sensorial Quality

Oyster (Crassostreairedalei) are edible bivalve mollusk that contains nutrients that could enhance the nutritional value of dairy products such as ice cream. This study was conducted to determine the microbial and sensorial quality of ice cream fortified with oyster puree at 0% 5%, 10% and 15% concentration during 4 weeks’ frozen storage period. Based on the sensory evaluation results, treatment 2 (10%) obtained the highest overall acceptance mean score of 8.50 (like extremely), but showed no significant difference (p>0.05) with other treatments. The addition of oyster puree did not affect the sensory attributes and the overall acceptability of the products. All treatments were still acceptable on week 4 in terms of sensory attributes. For the basis of microbial analysis, all treatments revealed to have an acceptable microbial count that is below the standard limit of 100,000 CFU/ml (5 log CFU/ml) from week 0 to week 4. Development of ice cream fortified with oyster puree is feasible to increase its nutritional value.

scholarly journals Microbial, Chemical and Sensorial Quality of Chilled Marinated Green Mussel Pernaviridis, (Linnaeus, 1758)

2018 ◽  
Vol 6 (1) ◽  
pp. 135-141
Author(s):  
Jerson C. Sorio ◽  
Reyda I. Inolino
Keyword(s):  
Storage Period ◽  
Microbial Count ◽  
N Value ◽  
Green Mussel ◽  
Physico Chemical ◽  
Significant Difference ◽  
Sensorial Quality ◽  
Ph Level ◽  
General Acceptability

The study aimed to assess the physico-chemical, microbiological and sensorial quality of marinated green mussels (Perna viridis) over 28 days (4 weeks) storage period at chilled temperature (2 °C). There were two treatments in the study. In treatment 1, samples were immersed in 66% vinegar and 2% salt. In treatment 2, samples were immersed in 66% vinegar, 2% salt and 1% spices such as pepper, fennel, cloves, bay leaves and paprika. Based on the physico-chemical results, the sample has a proximate composition of 13.60% protein, 1.66% lipid and 0.07% moisture. For the TVB-N value, treatment 1 decreased from 4.35 mg/100g to 1.05 mg/100g over the 4 weeks storage period. In treatment 2, TVB-N value increased from week 1 (4.14 mg/100g) to week 2 (5.38 mg/100g), but decreased further from week 2 to week 4 with a TVB-N value of 1.62 mg/100g. For pH level determination, treatment 1increased its pH level from 4.03 to 4.13 over the storage period. In treatment 2, pH has increased from 4.2 (week 1) to 4.37 (week 3), but decreased further to 4.1 (week 4). There was no significant difference (p 0.05) observed between the samples. Based on the microbiological analyses, treatment 1 decreased it microbial count from 1.69 x 108 to 7.70 x 103 over the storage period. In treatment 2, the microbial count also decreased from 1.13 x 107 to 8.07 x 103. For the basis of sensory evaluation, treatment 1 decreased its general acceptability from 6.44 to 5.89 over the storage period. In treatment 2, the general acceptability also decreased from 6.67 to 5.71. According to the overall results, the marinated green mussel was stable for 28 days.

COMPARATIVE EVALUATION OF YOGHURT SAMPLES FROM GOATS AND COWS MILK AND COMMERCIAL RETAIL OUTLET

2021 ◽  
Vol 34 (1) ◽  
Author(s):  
V. A. Obatolu ◽  
E. A. Adebowale ◽  
F. Omidokun ◽  
E. O. Farinde
Keyword(s):  
Goat Milk ◽  
Storage Period ◽  
Total Solid ◽  
Cow Milk ◽  
Microbial Count ◽  
Significant Drop ◽  
Overall Acceptability ◽  
Count Range ◽  
Significant Difference ◽  
Mineral Acidity

This paper compared the chemical (Proximate and mineral), acidity, microbial count and organoleptic properties of yoghurt samples produced from Nigeria locally bred goat and cow milk with commercially retail yoghurt during 14days of refrigerated storage. Yoghurt production was conducted by inoculation of the milk samples at 43oC for 6hrs with 2% of streptococcus thermophillus and lactobacillus bulgarus active culture. The total ash content of yoghurt ranges from 0.23g/100g in the commercial yoghurt sample to 0.84g/100g in yoghurt from goat  milk which is considered significantly higher than that observed for yoghurt from cow milk. The commercially retail yoghurt had a significantly higher (P < 0.05) total solid matter than yoghurt from goat and cow milk. Calcium and phosphorus contents were significantly (P < 0.05) lowest in the commercial yoghurt (0.28%) to a significant higher value of 0.28% in goat milk. A statisitically significant drop in pH values was observed in the commercial yoghurt sample after one and two week storage compared to yoghurt from goat and cow milk. High lactic acid bacteria were observed in yoghurt from cow milk with lactococci group being higher than the lactobacilli group throughout the storage period. The yeast count range from a significant low (P < 05) value of 2.22 cfu/ml-1 in commercial yoghurt sample to 3.22 and 3.24 in goat and cow milk respectively on day zero of storage. By the 7days of storage, the commercially retail yoghurt was significant (P < 0.05) least desirable with respect to colour, taste and overall acceptability while there was no significant difference in the consistency of all the yoghurt samples.

scholarly journals Shelf life and sensory assessment of tilapia quenelle during frozen storage

2013 ◽  
Vol 48 (8) ◽  
pp. 1080-1087 ◽  
Author(s):  
Maria Fernanda Calil Angelini ◽  
Juliana Antunes Galvão ◽  
Amanda de Freitas Vieira ◽  
Luciana Kimie Savay-da-Silva ◽  
Ligianne Din Shirahigue ◽  
...  
Keyword(s):  
Shelf Life ◽  
Fish Consumption ◽  
Frozen Storage ◽  
Storage Period ◽  
Sensory Attributes ◽  
Sensory Assessment ◽  
Brazilian Legislation ◽  
Significant Difference ◽  
Off Flavors ◽  
Retort Pouch

The objective of this work was to evaluate the shelf life and sensory attributes of tilapia quenelle. Treatments consisted of two types of packages - polyethylene zipper (retort pouch) (QA) and polyethylene waxed paper box (QB) - stored at -18ºC for 120 days. Tilapia quenelle was stable for all parameters established by Brazilian legislation. Average values of the evaluated attributes in different packages, during storage, showed no significant difference, except for the "refrigeration" flavor. However, during the storage period, there were significant differences for sensory attributes, as "moist appearance", fish and product aroma, and off flavors of "mud" and "refrigeration". Preserving product quality as for its sensory attributes, during storage, shows that tilapia quenelle is a convenience product and contributes to the increase of fish consumption.

Physiochemical properties and sensory characteristics of resistant starch enriched cookies

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Arezoo Rojhani ◽  
Joshua Naranjo ◽  
Ping Ouyang
Keyword(s):  
Resistant Starch ◽  
Nutritional Value ◽  
Consumer Preference ◽  
Sensory Attributes ◽  
Eating Quality ◽  
Surface Color ◽  
Content Type ◽  
High Fiber ◽  
Overall Acceptability ◽  
Significant Difference

Purpose The purpose of this study was to examine sensory attributes, physiochemical characteristics and consumer preference of drop sugar cookies prepared using high-amylose maize resistant starch (HAMRS) as a replacement for 10%, 20% and 30% of all-purpose (AP) flour as compared to a control made with 100% AP flour. Design/methodology/approach A balanced complete block experimental design was used to evaluate the eating quality of the resistant starch enriched cookies using a consumer panel. Consumer preference for the appearance, flavor, texture, moistness and overall acceptability of cookies was assessed. Diameter, height, spread ratio, hardness, moisture, pH, density, surface color and nutrient composition of cookies were analyzed. Findings Compared with the control cookies, the HAMRS cookies had lower diameters, higher, heights, reduced spreads, reduced % moisture losses and lower densities (p < 0.001). TA.XT Plus Texture Analyzer showed the HAMRS cookies had a softer texture than the control cookies (p < 0.0001). Evaluation of surface color showed no significant difference in lightness between the control and the HAMRS cookies. The HAMRS cookies were preferred over the control for appearance, texture and moistness in sensory evaluation with 42.5% of panelists choosing the 20% HAMRS replaced cookies as their overall preference. The 20% and 30% HAMRS replaced cookies qualify to be labeled as a “good source” and “excellent source” of fiber, respectively. Practical implications This data demonstrates that replacement of up to 30% of AP flour with HAMRS improves eating quality and dietary fiber content of sugar cookies. Our results show that HAMRS has good potential for developing high fiber cookies with minimal adverse impact on physical characteristics and notable improvements in sensory attributes and nutritional value. Originality/value To the best of the authors’ knowledge, this is the first study that has reported on the functionality, consumer preference and nutritional value of cookies enriched with a HAMRS that is available to consumers in the form of flour.

scholarly journals Evaluation of nutritional value and microbiological safety in commercial dog food

2021 ◽  
Author(s):  
Katarzyna Kazimierska ◽  
Wioletta Biel ◽  
Robert Witkowicz ◽  
Jolanta Karakulska ◽  
Xymena Stachurska
Keyword(s):  
Nutritional Value ◽  
Microbiological Quality ◽  
Microbial Count ◽  
Pet Food ◽  
Microbiological Safety ◽  
Dog Food ◽  
Number Of Microorganisms ◽  
Contaminated Food ◽  
Dry Food

AbstractIn addition to properly balancing nutritional value in accordance with the needs of a dog, estimating the microbiological quality of dog food is crucial in providing healthy and safe foods. The aim of this study was to examine the quality of dry food for adult dogs, with particular reference to: (1) evaluating the nutritional value and compliance with nutritional guidelines for dogs, (2) comparing the nutritional value of dog foods, with particular emphasis on the division into cereal and cereal-free foods, and (3) evaluating their microbiological safety. All thirty-six evaluated dry dog foods met the minimum European Pet Food Industry FEDIAF requirement for total protein and fat content. The total aerobic microbial count in the analyzed dry dog foods ranged from 2.7 × 102 to above 3.0 × 107 cfu/g. In five (14%) dog foods the presence of staphylococci was detected; however, coagulase positive Staphylococcus (CPS) was not found. Mold presence was reported in one cereal-free dog food and in six cereal foods. In none of the analyzed foods Enterobacteriaceae were found, including coliforms, Escherichia coli and Salmonella spp. Bacteria of the genus Listeria and Clostridium as well as yeasts were also not detected. In conclusion, the evaluated dry dog foods had varied microbiological quality. The detected number of microorganisms may have some implications for long-term consumption of contaminated food. The lack of European Commission standards regarding the permissible amounts of microorganisms in pet food may result in insufficient quality control of these products.

scholarly journals Comparative effects on storage period of varieties Pineapple fruits

2015 ◽  
Vol 2 (3) ◽  
pp. 395-410 ◽  
Author(s):  
Shah Md Yusuf Ali ◽  
Md Ahiduzzaman ◽  
Sharmin Akhter ◽  
M Abdul Matin Biswas ◽  
Nafis Iqbal ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Storage Period ◽  
Biochemical Properties ◽  
Overall Acceptability ◽  
Pineapple Juice ◽  
Physico Chemical ◽  
Pineapple Fruit ◽  
Sensorial Attributes ◽  
The Comparative Study

Pineapple is considered as one of the most wanted tropical fruits and it is widely taken for fresh consumption as well as their flesh and juice are used for preparation of different product in Agro-processing industries. For such industrial processes, it is important to know the information of characteristics changes of pineapple during day after storage. Four varieties of pineapple were collected from different areas of Bangladesh named Honey Queen (H.Q), Giant Kew (G.K), Asshini and Ghorasal. Some Physico-chemical properties (weight loss, moisture content, ash and edible portion, pH, TSS, titrable acidity (TA), total sugar, reducing sugar) biochemical properties (ascorbic acid) and sensorial attributes (color, odor, firmness, appearances, sweetness and overall acceptability) of pineapple juice were studied during day after storage. This study examined the Comparison of different varieties of pineapple fruit characteristics and sensory quality of the pineapple fruits during storage. It was shown that there was a significant changes between the storage periods in relation to different varieties of fruits. The firmness of pineapple fruits were in outside and inside to be 0.21 to 0.27 N/m2 and 0.06 to 0.10 N/m2, respectively. The pH values of different varieties were found to be in the range of 4.30 to 4.36. The highest and lowest sweetness index were estimated to be 36.30 and 22.15 for Honey Queen and Asshini respectively. The highest and lowest magnitude of sugar contents of four pineapple varieties were found to be in the range of 14.16 to 15.8 mg/100g.The average TSS values were found to be 15.12%, 12.33%, 13.14% and 12.95% for H.Q., G.K., Asshini and Ghorashal, respectively. The comparative study indicated the characteristics of different varieties of pineapple changes during after storage.Res. Agric., Livest. Fish.2(3): 395-410, December 2015

scholarly journals Interaction between xylanase, glucose oxidase and ascorbic acid on the technological quality of whole wheat bread

2016 ◽  
Vol 46 (12) ◽  
pp. 2249-2256 ◽  
Author(s):  
Camila Batista da Silva ◽  
Eveline Lopes Almeida ◽  
Yoon Kil Chang
Keyword(s):  
Ascorbic Acid ◽  
Glucose Oxidase ◽  
Storage Period ◽  
Wheat Bread ◽  
Whole Wheat ◽  
Whole Wheat Bread ◽  
Significant Difference ◽  
Technological Quality ◽  
Central Composite

ABSTRACT: This study aimed to verify the performance of xylanase and its interaction with oxidants agents (glucose oxidase and ascorbic acid) on the quality of whole wheat bread. The experiment was based on a central composite rotational design and the Response Surface Methodology was used to analyze the results. None of the xylanase, glucose oxidase or ascorbic acid concentrations within the studied range led to a significant difference in the specific volume. The highest moisture content and the lowest firmness values were reported in the bread with lower and intermediate levels of xylanase and larger amounts of glucose oxidase and ascorbic acid. This effect was observed mainly at the end of the storage period. A minimum amount of xylanase (from 33 to 63 EDX kg-1 flour) showed to be essential for obtaining best results. Levels of ascorbic acid above 63mg kg-1 and glucose oxidase above 91 SRU kg-1 proved to be necessary to offer the beneficial effect of xylanase.

scholarly journals Quality of beef burger with addition of wet okara along the storage

2016 ◽  
Vol 40 (6) ◽  
pp. 706-717 ◽  
Author(s):  
Rafaela Bergmann Strada de Oliveira ◽  
Flávia Della Lucia ◽  
Eric Batista Ferreira ◽  
Roseane Maria Evangelista de Oliveira ◽  
Carlos José Pimenta ◽  
...  
Keyword(s):  
Nutritional Value ◽  
Storage Period ◽  
Brown Colour ◽  
Microbiological Characteristics ◽  
Technological Quality ◽  
Financial Income ◽  
Characteristic Colour ◽  
Zero Time ◽  
Light Brown Color

ABSTRACT Combining the consuming of agricultural residues with satisfying consumers is a challenge that may result in financial income for the frozen meat industries, besides generating products with different nutritional value and satisfactory technological quality. Thus, we aimed at elaborating and assessing the physical, chemical and microbiological characteristics of frozen raw and fried beef hamburgers with addition of okara in its wet form throughout their storage over a period of 120 days. The inclusion of okara was proportional to the reduction in the content of protein, and to the increase of the lipid and moisture amount in the fried and raw formulations. Okara increased the luminosity and dimmed along the storage period. In the raw formulations at zero time lower values for b*, a* were observed when compared to the zero time of the fried hamburgers. This leaded to a light brown color and highlighting the clearing of the color due to the inclusion of okara. The fried hamburgers also featured this clearing, but they were darker brown. Chromaticity was greater with the inclusion of okara and with the passage of time. It can be concluded after 120 days storage the levels of protein, lipid and moisture of the formulations were according to the recommended by the Technical Regulation for Identity and Quality of Hamburgers and comply with the requirements of the Brazilian Law for microbiological standards. The brown colour changed with the inclusion of okara but without alterations in the characteristic colour for beef burguers.

scholarly journals Change in chemical constituents and overall acceptability of frozen and dehydrated Aonla fruit pulp during storage

2016 ◽  
Vol 8 (3) ◽  
pp. 1615-1617
Author(s):  
Jyoti Prabha Bishnoi ◽  
Rakesh Gehlot ◽  
S. Siddiqui
Keyword(s):  
Chemical Constituents ◽  
Value Added ◽  
Storage Period ◽  
Sensory Attributes ◽  
Soluble Solids ◽  
Chemical Characteristics ◽  
Storage Duration ◽  
Overall Acceptability ◽  
Physico Chemical ◽  
Further Development

Ascorbic acid and total phenol in frozen aonla pulp on zero day of storage was found to be 365.5 mg/100g and 2.1 mg/g while in dehydrated aonla pulp it was 2.3 mg/100mg and 14.7 mg/g which was found to decrease with the increase in storage duration. However, significant increase (CD at 5% Level) in total soluble solids (TSS) and non-enzymatic browning was noticed with the advancement in storage duration. The decrease and increase in physico-chemical characteristics were more significant in dehydrated aonla pulp as compared to frozen aonla pulp. Mean score for sensory attributes of dehydrated aonla pulp at zero month of storage was fairly less than frozen aonla pulp. Moreover, there was more significant decrease in value of sensory attributes of dehydrated aonla pulp during six months storage period compared to frozen aonla pulp. Thus, present study was first in its kind to determine and compare chemical composition and overall acceptability of frozen and dehydrated aonla pulp obtained from aonla fruits cv. Chakaiya during storage for optimizing there use in further development of value added aonla product.

scholarly journals Production and Quality Evaluation of Probiotic Malunggay (Moringa oleifera Lam.) Ice Cream

2018 ◽  
Vol 32 (1) ◽  
pp. 67
Author(s):  
Jessa B. Gisulga
Keyword(s):  
Sensory Evaluation ◽  
Block Design ◽  
Frozen Storage ◽  
Chemical Properties ◽  
Ice Cream ◽  
Extended Period ◽  
Microbial Count ◽  
Consumer Reaction ◽  
Experimental Type ◽  
The Cost

The study aimed to produce probiotic malunggay ice cream. It further aimed to determine and assess the effects of the probiotic malunggay on the sensory quality of the product, its physico-chemical properties, stability, consumer reaction and the cost of production. The research study used a 3 x 3 factorial experimental type of research in Randomized Complete Block Design (RCBD) with two (2) replicates and with three (3) levels of malunggay, namely, 0%, 15%, and 30% (w/v) and three (3) levels of probiotic cultures 0%, 20%, and 40% (w/v). The findings of the study revealed that sensory evaluation showed that only malunggay was significantly affected by the acceptability of the aforementioned sensory evaluation. When Malunggay was subjected to sensory evaluation, High levels of malunggay elicit low acceptability on its color, taste, flavor, and texture. In terms of pH, and TA of the probiotic malunggay, when it was made into ice cream, such was affected by the levels of the probiotic culture, increased levels of probiotic culture correspond to a higher pH and TA values thus, increased levels of probiotic culture could further increase the initial microbial count of the probiotics in the product. Further studies may be conducted to confirm the storage stability of the probiotic microorganisms over an extended period of frozen storage.

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