scholarly journals Use of transglutaminase for improvement of quality of pastry produced by frozen-dough technology

2011 ◽  
Vol 20 (No. 6) ◽  
pp. 215-222 ◽  
Author(s):  
B. Hozová ◽  
J. Jančovičová ◽  
L. Dodok ◽  
V. Buchtová ◽  
L. Staruch
Keyword(s):  
Amino Acids ◽  
Protective Effect ◽  
Sensory Quality ◽  
Microbiological Quality ◽  
The Other ◽  
Sensory Profile ◽  
Total Count ◽  
Frozen Dough ◽  
Ph Values

The improving effect on the quality of final products has been studied of the enzyme transglutaminase added in two concentrations, i.e. 4.5 mg or 7.5 mg/300 g of flour destined for the preparation of pastry dough. Changes of the sensory (sensory profile), nutritional (the contents of amino acids, especially that of lysine), and microbiological quality (total count, yeasts, moulds) were investigated as well as those of aw and pH values of the pastry produced from the freezer-stored dough (–18 ± 2°C). It has been found that the sensory quality is favourably affected by the addition of transglutaminase (TGM) in the amount of 4.5 mg/300 g of flour and on the other hand that the protective effect on lysine increases if the applied TGM concentration is higher (7.5 mg per 300 g of flour). The microbiological quality, the pH and aw values of dough, and the products have satisfied the criteria for the sanitary and hygienic requirements.  

EFEK PENAMBAHAN EKSTRAK AIR JAHE (Zingiber officinale Roscoe) DAN PENYIMPANAN DINGIN TERHADAP MUTU SENSORI IKAN TUNA (Thunnus albacores)

2010 ◽  
Vol 6 (1) ◽  
pp. 36
Author(s):  
Silvana Dinaintang Harikedua
Keyword(s):  
Sensory Quality ◽  
Zingiber Officinale ◽  
The Other ◽  
Ginger Extract ◽  
Other Hand ◽  
Storage Treatment ◽  
Zingiber Officinale Roscoe ◽  
Hedonic Scale ◽  
And Storage

The objective of this study was to investigate the effect of ginger extract addition and refrigerate storage on sensory quality of Tuna through panelist’s perception. Panelists (n=30) evaluated samples for overall appearance and flavor attribute using hedonic scale 1–7. The sample which is more acceptable by panelists on flavor attributes having 3% gingers extract and storage for 3 days. The less acceptable sample on flavor attribute having 0% ginger extract and storage for 9 days. On the other hand, the sample which is more acceptable by panelists on overall appearance having 0% ginger extract without storage treatment. The less acceptable sample on overall appearance having 3% ginger extract and storage for 9 days.

scholarly journals Hermetia illucens Larvae Reared on Different Substrates in Broiler Quail Diets: Effect on Physicochemical and Sensory Quality of the Quail Meat

Animals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 525 ◽  
Author(s):  
Marco Cullere ◽  
Michael Josias Woods ◽  
Liesel van Emmenes ◽  
Elsje Pieterse ◽  
Louwrens Christiaan Hoffman ◽  
...  
Keyword(s):  
Sensory Quality ◽  
Sensory Profile ◽  
Breast Meat ◽  
Hermetia Illucens ◽  
Physical Quality ◽  
Lipid Quality ◽  
Retail Display ◽  
Dietary Treatments ◽  
Hermetia Illucens Larvae

This research aimed at improving the fatty acid (FA) profile of Hermetia illucens larvae (HI) and evaluating the effects of their inclusion in growing broiler quails’ diets on the meat physicochemical quality, including detailed amino acid (AA) and FA profiles, sensory traits, and retail display. HI larvae were reared on two different substrates: layer mash (HI1) and 50:50 layer mash/fish offal (HI2). A total of 300 10-day-old quails were allocated to the three dietary groups (five replicates/each): a soybean meal-based diet was formulated (Control), and two other diets were formulated that included either 10% HI1 or HI2. Quails were fed the experimental diets until slaughter. Diets were formulated to be isonitrogenous and isoenergetic. Breast meat quality was affected by the dietary treatments, which displayed different proximate compositions and AA and FA profiles. Meat physical quality, sensory profile, and retail display remained unaffected for the most part. Overall, results showed that it is possible to improve the FA profile of the HI-fed quails’ meat and thus lipid quality through substrate modulation of the HI’s diet.

scholarly journals Evaluation of the fermentation process and final quality of five cacao clones from the department of Huila, Colombia.

DYNA ◽  
2019 ◽  
Vol 86 (210) ◽  
pp. 233-239
Author(s):  
Heidi Briggity Horta Tellez ◽  
Maria Cristina García Muñoz ◽  
Ivonne Ximena Ceron Salazar ◽  
Angelica Piedad Sandoval Aldana
Keyword(s):  
Fermentation Process ◽  
The Other ◽  
Sensory Profile ◽  
Total Acidity ◽  
Total Polyphenols ◽  
Fermentation Time ◽  
Cutting Test ◽  
Cocoa Quality ◽  
Fermentation Parameters

The aim of this work was to study the microfermentation process of five cacao clones, ICS 01, ICS 95, ICS 39, TSH 565 and CCN 51, from the department of Huila, Colombia. These clones were characterized by their physicochemical properties followed by their fermentation process. The behavior of temperature, pH, total acidity, total polyphenols and fermentation index was recorded. Additionally, the physical cutting test was carried out at the end of the process, as well as the sensory evaluation of the cocoa liquor, in order to establish the sensory profile of each material. Results showed that fermentation time for clones ICS 95, ICS 01 was five days t was obtaining a standard cocoa quality for ICS 01. The other three clones ICS 39, TSH 565 and CCN 51 required six days of fermentation but a premium cocoa was obtained. The establishment of fermentation parameters allows improving final cocoa quality, and thus, increasing its commercial value.

Roasting and packaging in nitrogen atmosphere protect almond var. Guara against lipid oxidation

2011 ◽  
Vol 17 (6) ◽  
pp. 529-540 ◽  
Author(s):  
P. Sanchez-Bel ◽  
I. Egea ◽  
M.T. Pretel ◽  
F.B. Flores ◽  
F. Romojaro ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Relative Humidity ◽  
Protective Effect ◽  
Sensory Quality ◽  
Lipid Fraction ◽  
Storage Period ◽  
Nitrogen Atmosphere ◽  
Conjugated Dienes ◽  
Contrary Effect

The effect of packaging in nitrogen (N2) atmosphere or in air on the quality of peeled and roasted almond var. Guara during storage for 20 weeks at 20 °C ± 1 °C and 65–70% relative humidity (RH) was studied. No changes in the sugar, fat, protein or fiber contents were observed during the storage period nor in color. Only the lipid fraction showed significant changes with the kind of packaging atmosphere. The composition of fatty acids remained unchanged during the 5 month storage in all the samples. Packaging in N2 atmosphere was seen to have a protective effect against the accumulation of conjugated dienes (CD) in peeled almonds, while in roasted almonds, the protective effect was lower and even nil by the end of storage. The contrary effect was observed for the ultraviolet (UV; K270) index which increased more slowly in the roasted samples packaged in N2, while in peeled samples it reached the same levels at the end of storage regardless of the packaging atmosphere. No effect of the packaging atmosphere was observed on the evolution of the peroxide value in the tested samples (peeled or roasted almonds). None of these changes in the lipid fraction was reflected in the final sensory quality of the samples and the taster panel found no changes in the sensory quality in any case.

scholarly journals Sensory Analysis in Assessing the Possibility of Using Ethanol Extracts of Spices to Develop New Meat Products

Foods ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 209 ◽  
Author(s):  
Krystyna Szymandera-Buszka ◽  
Katarzyna Waszkowiak ◽  
Anna Jędrusek-Golińska ◽  
Marzanna Hęś
Keyword(s):  
Essential Oil ◽  
High Intensity ◽  
Food Industry ◽  
Sensory Quality ◽  
Control Sample ◽  
Meat Products ◽  
Sensory Profile ◽  
Ethanol Extracts ◽  
The Impact

The food industry has endeavoured to move toward the direction of clean labelling. Therefore, replacing synthetic preservatives with natural plant extracts has gained significant importance. It is necessary to determine whether products enriched with such extracts are still accepted by consumers. In this study, consumer tests (n = 246) and sensory profiling were used to assess the impact of ethanol extracts of spices (lovage, marjoram, thyme, oregano, rosemary, and basil; concentration 0.05%) on the sensory quality of pork meatballs and hamburgers. The desirability of meat products with spice extracts to consumers depended on the added extract. The highest scores were for products with lovage extract, whose sensory profile was the most similar to the control sample without the addition of an extract (with higher intensity of broth taste compared with the others). Products with rosemary and thyme extracts were characterised by lower desirability than the control. This was related to the high intensity of spicy and essential oil tastes, as well as the bitter taste in the case of products with thyme. The studied extracts of spices allow for the creation of meat products (meatballs and hamburgers) with high consumer desirability, however, the high intensity of essential oil and spicy tastes might be a limitation.

scholarly journals Microbiological quality of goat's milk obtained under different production systems

2005 ◽  
Vol 76 (2) ◽  
Author(s):  
J.K. Kyozaire ◽  
C.M. Veary ◽  
I-M. Petzer ◽  
E.F. Donkin
Keyword(s):  
Production System ◽  
Production Systems ◽  
Microbiological Quality ◽  
Goat Milk ◽  
The Other ◽  
Dairy Goat ◽  
Milk Samples ◽  
Machine Milking ◽  
Milking Machine

In order to determine the safety of milk produced by smallholder dairy goat farms, a farm-based research study was conducted on commercial dairy goat farms to compare the microbiological quality of milk produced using 3 different types of dairy goat production systems (intensive, semi-intensive and extensive). A survey of dairy goat farms in and around Pretoria carried out by means of a questionnaire revealed that most of the smallholder dairy goat farms surveyed used an extensive type of production system. The method of milking varied with the type of production system, i.e. machine milking; bucket system machine milking and hand-milking, respectively. Udder half milk samples (n=270) were analysed, of which 31.1 % were infected with bacteria. The lowest intra-mammary infection was found amongst goats in the herd under the extensive system (13.3 %), compared with 43.3 % and 36.7 % infection rates under the intensive and semi-intensive production systems, respectively. Staphylococcus intermedius (coagulase positive), Staphylococcus epidermidis and Staphylococcus simulans (both coagulase negative), were the most common cause of intramammary infection with a prevalence of 85.7 % of the infected udder halves. The remaining 14.3 % of the infection was due to Staphylococcus aureus. Bacteriology of bulk milk samples on the other hand, showed that raw milk obtained by the bucket system milking machine had the lowest total bacterial count (16 450 colony forming units (CFU)/mℓ) compared to that by pipeline milking machine (36 300 CFU/mℓ) or handmilking (48 000 CFU/mℓ). No significant relationship was found between the somatic cell counts (SCC) and presence of bacterial infection in goat milk. In comparison with the herds under the other 2 production systems, it was shown that dairy goat farming under the extensive production system, where hand-milking was used, can be adequate for the production of safe raw goat milk.

scholarly journals Use of Avocado and Tomato Paste as Ingredients to Improve Nutritional Quality of Pork Frankfurter

2014 ◽  
Vol 3 (3) ◽  
pp. 132 ◽  
Author(s):  
Martin Valenzuela-Melendres ◽  
Noemi Guadalupe Torrentera-Olivera ◽  
Gustavo Gonzalez-Aguilar ◽  
Monica Villegas-Ochoa ◽  
Luis German Cumplido-Barbeitia ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Nutritional Quality ◽  
Sensory Quality ◽  
Antioxidant Properties ◽  
Monounsaturated Fatty Acids ◽  
The Other ◽  
Good Strategy ◽  
Sensory Panel ◽  
Tomato Paste

<p>The objective of this research was to study the effect of avocado pulp (A) and tomato paste (T) addition on the physicochemical, nutritional and sensory quality of pork frankfurters. Treatments were: 1) Control; 2) A10 = 10% A; 3) A20 = 20% A; 4) T10 = 10% T; 5) T20 = 20% T; and 6) A10+T10 = 10% A+10% T. Colour (<em>L*</em>, <em>a*</em> and <em>b*</em>), fatty acid profile, contents of phenols and flavonoids, and antioxidant capacity were measured. In the same way, sensory analysis was evaluated. Tomato paste decreased <em>L*</em> but increased (P &lt; 0.05) <em>a</em>* and <em>b</em>* values. On the other hand, A did not affect <em>L*</em>, decreased <em>a*</em> and increased <em>b*</em>. Avocado pulp increased (P &lt; 0.05) the proportion of monounsaturated fatty acids in the finished product. Antioxidant activity increased (P &lt; 0.05) with incorporation of T, much higher than that observed by adding A. Frankfurters with T and with a combination of T and A had the best acceptance by the sensory panel. The use of T and A can be a good strategy to improve nutritional quality and antioxidant properties of pork frankfurters.</p>

scholarly journals Effect of Ginger on Chemical Composition, Physical and Sensory Characteristics of Chicken Soup

Foods ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1456
Author(s):  
Wen Duan ◽  
Li Liang ◽  
Yan Huang ◽  
Yuyu Zhang ◽  
Baoguo Sun ◽  
...  
Keyword(s):  
Amino Acids ◽  
Organic Acids ◽  
Free Amino Acids ◽  
Free Amino ◽  
Sensory Quality ◽  
Electronic Tongue ◽  
Color Difference ◽  
Mineral Elements ◽  
Sensory Characteristics

In order to investigate the effect of ginger on taste components and sensory characteristics in chicken soup, the content of amino acids, organic acids, 5′-nucleotides, and mineral elements were determined in chicken soup sample. With the ginger added, free amino acids in chicken soup obviously increased and exceeded the total amounts in ginger soup and chicken soup. The content of glutamic acid (122.74 μg/mL) was the highest among 17 free amino acids in ginger chicken soup. Meanwhile, six organic acids detected in chicken soup all obviously increased, among which lactic acid (1523.58 μg/mL) and critic acid (4692.41 μg/mL) exceeded 1000 μg/mL. The content of 5′-nucleotides had no obvious difference between ginger chicken soup and chicken soup. Compared with chicken soup, ginger chicken soup had a smaller particle size (136.43 nm) and color difference (79.69), but a higher viscosity. With ginger added in chicken soup, the content of seven mineral elements was reduced, and the content of total sugar increased. Results from an electronic tongue indicated a difference in taste profiles among the soups. The taste components and sensory quality of chicken soup were obviously affected by adding the ginger.

scholarly journals Use of Lactobacillus fermentum for improving fermentation degree of smallholder dried cocoa beans

2020 ◽  
Vol 35 (3) ◽  
pp. 205-211
Author(s):  
Ariza Budi Tunjung-Sari ◽  
Misnawi Jati ◽  
Noor Ariefandie Febrianto ◽  
Teguh Wahyudi
Keyword(s):  
Sensory Quality ◽  
Untreated Group ◽  
Lactobacillus Fermentum ◽  
Sensory Profile ◽  
Cocoa Beans ◽  
Small Holder Farmers ◽  
Sensory Qualities ◽  
Small Holder

In an attempt to improve the quality of dried cocoa beans produced from small holder farming in Indonesia, experiment of cocoa beans and Lactobacillus fermentum (LF) was conducted. LF culture at concentration 5% w/w was added into dried cocoa beans and incubated for four days. Treated beans were sun dried and evaluated for slaty and purple appearance on the nibs, as well as defects and sensory quality. This study reports a significant decrease in the proportion of slaty and purple beans in the treated groups either in smaller (30 kg) or in the larger (150 kg) scales. The moulded bean number surged, but moulded beans was already present in the untreated group. The sensory profile was obtaining higher scores on the chocolate flavor, bitterness and astringency attributes. It is concluded that LF culture could be used for improving the physical and sensory qualities of cocoa beans from small holder farmers.

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