Marine Gelatine from Rest Raw Materials

Film Forming ◽

Pre Treatment ◽

Polypeptide Chains ◽

Physical And Chemical ◽

By Products ◽

In recent years, demand for consumption of marine foods, and especially fish, has substantially increased worldwide. The majority of collagen available is sourced from mammalian-derived products. Although fish derived gelatine is a viable alternative to mammalian sourced gelatine, there are some challenges related to the use of fish gelatine including odour, colour, gelling and film forming properties as well as consistency in gelatine amino acid composition. Chemicals used for pre-treatment, as well as extraction conditions such as temperature and time, can influence the length of polypeptide chains that result and the functional properties of the gelatine. Compared to mammalian sources, gelatines derived from fish show notable differences in physical and chemical properties, and great care should be paid to optimization of the production process in order to obtain a product with the best properties for intended applications. The focus of this review is to explore the feasibility of producing gelatine sourced from marine processing by-products using different pre-treatment and extraction strategies with the aim of improving the techno-functional properties of the final product and improving the clean-label status of gelatines. The bioactivities of gelatine hydrolysates are also discussed.

RESEARCH OF PHYSICAL AND CHEMICAL PROPERTIES OF LOCAL SILICON RAW MATERIALS FOR THE PRODUCTION OF HEAT-INSULATING MATERIALS

EurasianUnionScientists ◽

10.31618/esu.2413-9335.2018.8.56.36-39 ◽

2018 ◽

Vol 8 (56) ◽

pp. 36-39

Author(s):

D.S. Nazarova ◽

A.B. Niyazbekova ◽

D.Zh. Kiisheva

Keyword(s):

Raw Materials ◽

Chemical Properties ◽

Insulating Materials ◽

Physical And Chemical ◽

Diesel Biofuels - Preparation, Characterization and Testing

Revista de Chimie ◽

10.37358/rc.08.11.2018 ◽

2008 ◽

Vol 59 (11) ◽

Author(s):

Cristina Dusescu ◽

Anca Borcea ◽

Vasile Matei ◽

Ion Popa ◽

Irina Gabriela Radulescu

Keyword(s):

Vegetable Oils ◽

Sunflower Oil ◽

Raw Materials ◽

Chemical Properties ◽

Soya Bean ◽

Production Unit ◽

Physical And Chemical ◽

The present paper studies biodiesel samples preparation by transesterification and compares their physical and chemical properties (biofuels prepared from different raw materials - vegetable oils: sunflower oil, crocus oil and soya bean oil) and the biodegradability degree, as well as the possibilities of the integration of such production unit in industrial diagram of auto fuels production.

Physical and chemical properties of lipid by-products from seafood waste

Maximising the value of marine by-products ◽

10.1201/9781439824542.ch2 ◽

2006 ◽

Author(s):

S Murphy ◽

J Kerry

Keyword(s):

Chemical Properties ◽

Physical And Chemical ◽

By Products ◽

Influence of temperature regimes of ripening and fermentation stages on the physical and chemical properties of cream and sour-cream butter quality indicators

Food Science and Technology ◽

10.15673/fst.v12i3.1040 ◽

2018 ◽

Vol 12 (3) ◽

Author(s):

O. O. Bondarchuk

Keyword(s):

Milk Fat ◽

Raw Materials ◽

Chemical Properties ◽

Second Stage ◽

Temperature Regimes ◽

Third Stage ◽

Sour Cream ◽

Physical And Chemical ◽

Physical and chemical properties of cream multistep modes of ripening and fermentations are investigation and their role in the production of sour-cream butter is studied. The process of ripening of cream was carried out multistep, regimes were selected depending on seasonal changes in the composition of milk fat. For raw materials of the autumn-winter period, for the values of iodine number 29.1–34.5, the first stage of ripening was carried out at a temperature of 8°C for 2 hours, the second stage – at 21°C for 7 hours, the third stage – at 13°C for 10 hours. For raw of spring-summer period, for the values of iodine number 34.5–40.1, the first stage of ripening was carried out at 21°C for 6 hours, the second stage – at 13°C for 4 hours, the third stage – at 8°C for 8 hours. It has been established that individual modes of low-temperature cream preparation, taking into account seasonal changes in the composition of milk fat, make it possible to obtain cream before churning almost with the same indexes of effective viscosity. The content of the crystalline phase of milk fat under both temperature regimes was 38.7–40.1%, which is sufficient to obtain of proper consistency sour-cream butter. The content of diacetyl and volatile organic acids more depend on the level of fermentation of cream than on the technological regimes of ripening and seasonality of raw materials. It has been proved that an increase in the fermentation degree of cream promotes an increase in the acidity of plasma and the content of aroma-producing components in the butter, and, accordingly, affects the degree of the sour taste. It is recommended for the production of cultured butter to begin the cream when the acidity of the plasma reaches 60ºT, which ensures the formation of high sensorial characteristic of the finished product.

Vegetable oils – raw materials for producing biodiesel

Bulletin of Kazakh Leading Academy of Architecture and Construction ◽

10.51488/1680-080x/2021.2-16 ◽

2021 ◽

Vol 80 (2) ◽

pp. 286-292

Author(s):

T. Mamilov ◽

◽

G.S. Aitkaliyeva ◽

A.B. Ismailova ◽

M.A. Yelubay ◽

...

Keyword(s):

Functional Groups ◽

Vegetable Oils ◽

Raw Materials ◽

Chemical Properties ◽

Biodiesel Fuel ◽

Sunflower Oils ◽

Transesterification Method ◽

Physical And Chemical ◽

This paper presents the results of a study of the physical and chemical properties of samples of vegetable oils (sunflower, rapeseed, olive). It has been shown that the viscosity of oils varies from 41.4 to 61.7 cSt at a temperature of 40 ° C for olive and sunflower oils, respectively. The acid numbers of the oil samples were also determined, it was found that the lowest indicator is characteristic of sunflower oil. Pour points of oils also range from -3 to -16 ° C for olive and sunflower oils, respectively. Using the method of IR spectroscopy, functional groups in the composition of samples of vegetable oils were studied and it was shown that the composition of oils contains carbonyl and hydroxyl functional groups, indicating the presence of carboxylic acids. Based on studies of the physical and chemical properties of vegetable oils, it was found that sunflower, olive and rapeseed oils can serve as raw materials for the synthesis of biofuels based on them, since they contain free fatty acids. To obtain biodiesel fuel based on vegetable oils, it is planned to use the transesterification method in the presence of various catalysts (alkaline, acidic, and complex).

Effects of Preparation of Cement Raw Meal with Carbide Slag on the Environment and Equipments

Materials Science Forum ◽

10.4028/www.scientific.net/msf.787.123 ◽

2014 ◽

Vol 787 ◽

pp. 123-127 ◽

Cited By ~ 1

Author(s):

Ya Li Wang ◽

Su Ping Cui ◽

Hui Wang ◽

Shi Jie Dong ◽

Yan Yao

Keyword(s):

Heavy Metal Ions ◽

Raw Materials ◽

Chemical Properties ◽

Exhaust Gas ◽

Drying Process ◽

Calcination Process ◽

Carbide Slag ◽

Physical And Chemical ◽

Based on the physical and chemical properties of carbide slag, the contents of heavy metals in effluent came from carbide slag drying process were studied, and then the composition of exhaust gas emitted from the carbide slag drying process and calcinations process of raw materials prepared with carbide slag was detected, in order to know whether there are harmful or corrosive gases released and the effect of the emissions on the environment and related equipments. The results indicate that the exhaust gases emitted from the calcination process of raw meal prepared with carbide slag is mainly composed of CO2 and water vapor, and is free from harmful gases. However, a lot of water in carbide slag during the pre-heat and decomposition process under high temperature would accelerate the corrosion of equipments. Simultaneously, a small number of heavy metal ions contained in the carbide slag can cause environmental pollution and sulfides would be adverse to the cement calcination process resulting in the crust blockage of kiln.