scholarly journals Edible coating as factor of preserving freshness and increasing biological value of gingerbread cakes

2016 ◽  
Vol 10 (4) ◽  
Author(s):  
О. Shulga ◽  
А. Chorna ◽  
L. Аrsenieva

The article presents experimental study on the feasibility of using edible films (in the coating) as a means of preventing staling and method of increasing the biological value of gingerbread products. Grounded components of edible coating. Based on the organoleptic and physico-chemical showers properties (moisture content, water absorptivity and friability) proved the feasibility and necessity of use last one edible coating, which also can increase the biological value of products, as part of the cover is linseed oil.

Coatings ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 583
Author(s):  
Qiannan Wang ◽  
Hongliang Yu ◽  
Bo Tian ◽  
Bin Jiang ◽  
Jing Xu ◽  
...  

The composition and properties of edible coatings (ECs) will significantly influence their effects of food preservation. For the first time, whey protein isolates nanofibers (WPNFs), as a novel material with high hydrophobicity and antioxidant activity, combined with carvacrol (CA) as an antimicrobial agent and glycerol (Gly) as a plasticizer, was used to prepare edible coating (WPNFs-CA/Gly) for preserving fresh-cut Cheddar cheese. The prepared WPNFs and ECs emulsions have been investigated with transmission electron microscopy. Furthermore, the antioxidant activity of ECs emulsions, antimicrobial activity of edible films, and the physical properties of edible films, such as micromorphology, thickness, transparency, and moisture content, have also been evaluated. The weight losses and physical characteristics of both coated and uncoated fresh-cut Cheddar cheese samples have been assessed during storage. The DPPH free radical scavenging rate of WPNFs-CA/Gly emulsion was up to 67.89% and the reducing power was 0.821, which was higher than that of WPI-CA/Gly emulsions. The antimicrobial activity of WPNFs-CA/Gly films was nearly 2.0-fold higher than that of WPNFs/Gly films for the presence of CA. The WPNFs-CA/Gly films had smooth and continuous surfaces, and the transparency reached 49.7% and the moisture content was 26.0%, which was better than that of WPI-CA/Gly films. Furthermore, Cheddar cheese with WPNFs-CA/Gly coatings has shown lower weight losses (15.23%) and better textural properties than those uncoated samples. This in-depth study has provided a valuable and noteworthy approach about the novel edible coating material.


2017 ◽  
Vol 98 ◽  
pp. 348-356 ◽  
Author(s):  
Ewelina Basiak ◽  
Andrzej Lenart ◽  
Frédéric Debeaufort

2020 ◽  
Vol 18 (1) ◽  
pp. 9-14
Author(s):  
Mulia W. Apriliyani ◽  
Purwadi Purwadi ◽  
Abdul Manab ◽  
Mulia W. Apriliyanti ◽  
Alvira D. Ikhwan

Food Research ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 320-326
Author(s):  
Reifrey, A. Lascano ◽  
M.G.L.D. Gan ◽  
A.S.L. Sulabo ◽  
D.M.O. Santiago ◽  
L.B. Ancheta ◽  
...  

The study aimed to develop a non-dairy-based probiotic-supplemented product using an underutilized crop in the Philippines such as the yellow passion fruit (Passiflora edulis f. flavicarpa Deg.). The physico-chemical properties (moisture content, water activity, pH, and total soluble solids), probiotics stability at different storage temperatures (4°C, 25°C, and 37°C), and the sensory characteristics of Lactobacillus plantarum S20-supplemented passion fruit juice powder was evaluated. Passion fruit juice powder and L. plantarum S20 were first prepared using low-temperature spray drying utilizing maltodextrin as a carrier, with yield as 42.97% and 21.17%, respectively. Spray drying of probiotics culture also resulted in 42.68% log survivability. The formulated juice powder had a final moisture content of 1.729±0.38% and water activity of 0.398±0.0051, and with recommended dilution with water, had a final pH and total soluble solids of 3.40±0.10 and 12.00±0.00° Brix, respectively. Results also showed that storage of the formulated juice powder at 4°C yielded the highest probiotic stability, maintaining a viable log count of 4.27 per g, while storage at 37°C showed no microbial growth. Sensory evaluation of probioticsupplemented passion fruit juice against a non-probiotic-supplemented one revealed significant difference in terms of color, sweetness, and sourness, while no significant difference was observed in terms of aroma, mouthfeel, and general acceptability.


2020 ◽  
Vol 180 ◽  
pp. 03008
Author(s):  
Albena Durakova

The present study determined the sorption characteristics of Bulgarian penny buns (Boletus) for eight water activities in the 10 % 90 % range and at three temperatures, of 10 °С, 25 °С and 40 °С. The coefficients of the modified Oswin, Chung-Pfost, Halsey and Henderson models were obtained statistically. The modified Halsey model is recommended as a description of adsorption and desorption isotherms since it corresponds to the criteria for model assessment and suitability. Via BET model linearization, the values of the monolayer moisture content for water activity of aw > 0.5 and temperatures of 10 °С, 25 °С and 40 °С were established. The approximate physico-chemical composition of Bulgarian penny buns (Boletus) – moisture content – 10.80 %, protein – 32.23 %, carbohydrate 0.99 %, fat – 6.62 %, ashes – 6.20 % - was also determined.


Alginates extracted from brown seaweed have a variety of prospective applications such as thickeners, stabilizers, or restructuring agents. Due to its properties as a natural polysaccharide, alginate is very potential to be used as edible films for food packaging purposes. Edible films are developed for food protection being excellent barriers to gases but not to moisture. Incorporation of antimicrobial agents into edible film formulation can extend product shelf life and reduce the risk of pathogenic bacterial growth on food. Therefore, this study was aimed to develop an alginate based antibacterial edible film. Antibacterial agent extracted from lemongrass leaves using ethanol was employed. The study was conducted by varying the addition levels of lemongrass ethanol extract to the alginate based edible films, i.e. 0.5%, 1.0% and 1.5%. Before being added to the alginate based edible films, the lemongrass ethanol extract was investigated for its antibacterial activity. The edible films obtained were analyzed in terms of physical, mechanical and chemical and microbiological parameters, including thickness, water vapor transmission rate (WVTR), brightness, tensile strength, elongation, moisture content, water solubility and antibacterial activity. Results showed that the higher addition levels of lemongrass ethanol extract tended to produce alginate based edible films with lower WVTR and brightness value as well as higher elongation, moisture content and water solubility. Edible film added with lemongrass ethanol extract resulted in this study demonstrated antibacterial activity against Staphylococcus aureus. The addition of lemongrass alcohol extract at 0.5% was considered as a recommended concentration level for producing alginate based antibacterial edible films.


2017 ◽  
Vol 9 (4) ◽  
pp. 2221-2227
Author(s):  
Ifrah Khursheed ◽  
Julie Dogra Bandral ◽  
Monika Sood ◽  
Naseer Ahmed

Poultry meat is a major source of high biological value protein. The incorporation of fiber in meat helps to enhance its nutritive value with added health benefits that demonstrates a relationship between a diet containing an excess of energy- dense food rich in fats and sugar and the emergence of a range of chronic disease and several others. While studying the effect of fiber incorporation on the functional parameters it was observed that cooking yield (%) and emulsion stability (%) significantly decreased and the values were 91.94 % and 91.13 % in control and 87.28 % and 87.01 % in case of T7 (18% KnolKhol powder). The physico chemical analysis revealed that with addition of Knolkhol powder (3%) level, the pH decreased from 6.31 to 6.26, TBARS from 0.39 to 0.33 (mg malonaldehyde /Kg), ash content from 2.60 to 2.52 % crude protein 17.15 to 17.10 %, whereas moisture increased from 66.06 to 67.11 %, crude fiber from 0.58 to 0.65 %. Coliform were not evident in the stored samples up to 30 days of storage, however psychrophyll count was found after 30 days of storage. The total psychrophillic count in control samples was 0.36 (log cfu/g) which increased to 0.81 (log cfu/g) with addition of 25% Sweet Corn paste.


2017 ◽  
Vol 54 (4) ◽  
pp. 403 ◽  
Author(s):  
Huma Parveen ◽  
Anita Bajpai ◽  
Sunny Bhatia ◽  
Shalu Singh

The study was undertaken with a view to explore the use of carrot pomace powder as well as beetroot pomace powder with whole wheat flour in the preparation of high fiber biscuits, to study its effect on the physico-chemical and sensory characteristics of biscuits. The Carrot Pomace Powder (CPP) and Beetroot Pomace Powder (BPP) were prepared through the process of convective dehydration and vacuum drying. All the data obtained were analyzed statistically to determine the level of significance of variation in observations caused by the changes in the biscuits formulations. The carrot pomace and beetroot pomace fortified biscuits contained greater amount of ash, crude fiber and moisture content than control biscuits but lower carbohydrate, protein, calorific value and pH. After fortification of fiber, product was found to be more acceptable in terms of physico-chemical and sensory characteristics.


2020 ◽  
Vol 180 ◽  
pp. 03007
Author(s):  
Albena Durakova ◽  
Adelina Bogoeva ◽  
Velichka Yanakieva ◽  
Tzvetana Gogova ◽  
Kornelia Choroleeva

The present study determined the physico-chemical parameters of the exotic fruit jujube (Ziziphus jujube mill) of Bulgarian origin – pH of 4.62, refractometric dry matter of 31.6 %, dry matter (in weight) of 36.78 %, TTA (total titratable acidity) – citric acid – of 0.67 %, 0.70 % malic acid, 65.95 % moisture, 0.78 % fibre, 1.41 % protein, 23.65 % carbohydrate, 0.24 % fat and energy value of 428.44 kJ/102.4 kcal. Equilibrium moisture content and monolayer moisture content were established for desorption concerning eight water activities in the 0.1 0.9 range and the temperatures of 10 °С, 25 °С and 40 °С. The coefficients of the modified Oswin, Chung-Pfost, Halsey and Henderson models were obtained statistically. The modified Halsey model is recommended as a description of the desorption isotherms of jujube (Ziziphus jujube mill) since it corresponds to the criteria for model assessment and suitability. Via BET model linearization, the values of the monolayer moisture content for desorption at the temperatures of 10 °С 5.41 % d.b., 25 °С – 4.65 % d.b. and 40 °С 5.08 % d.b were determined.


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