scholarly journals Determination of content and antioxidant capacity of natural food colors E160a and E160d in ketchup

2021 ◽  
Vol 19 (2) ◽  
pp. 91-98
Author(s):  
Vojkan Miljkovic ◽  
Milica Nesic ◽  
Ivana Gajic ◽  
Maja Urosevic ◽  
Jelena Mrmosanin ◽  
...  

After potato, tomato (Solanum lycopersicum) is the world?s second-largest vegetable crop. More than 80% of tomato consumption comes from processed products such as ketchup, tomato juice, pickled tomatoes, sauces, paste, pur?e. Samples of mild ketchup from two different manufacturers (A and B) were selected for the analysis of the content of natural food colors E160a and E160d. Using a UV-Vis spectrophotometric method and Lambert-Beer law, a system of two linear equations with two unknowns was set up, which was used to determine the concentrations of colors E160a and E160d. The antioxidant capacity of the two selected samples was determined using the DPPH assay. The obtained results indicated that the content of colors E160a and E160d was higher in the sample of ketchup B. Also, the DPPH assay showed that the sample of ketchup B had a higher antioxidant capacity.

1988 ◽  
Vol 98 ◽  
pp. 102-103
Author(s):  
Christian Buil ◽  
Olivier Las Vergnas

Since Spring 1983, the Pic du Midi and Toulouse Observatory has put the Gentilly 60-cm telescope at the disposal of amateurs. There was an initial experimental trial in 1982, and an amateur Programme Committee was set up in 1983. The “T.60 Association” took over the whole of the operation in 1984. So far, five hundred different amateur astronomers have used the equipment. The prime advantage of the T.60 is its site at the Pic du Midi, 2877 m altitude, one of the best observing sites in the world. By giving new facilities to amateurs, the T.60 offers considerable scientific and educational rewards. Work that has already been carried out includes: determination of H-R diagrams of faint clusters, spectra of planetary nebulae, polarimetric and interferometric studies of nebulae, photoelectric and visual studies of variable stars, research into the chemical composition of faint stars, and observations of mutual phenomena of Jupiter’s satellites.


2020 ◽  
Vol 11 (1) ◽  
pp. 15-29
Author(s):  
Philip L. Woodworth

Abstract. The 100th anniversary of the Liverpool Tidal Institute (LTI) was celebrated during 2019. One aspect of tidal science for which the LTI acquired a worldwide reputation was the development and use of tide prediction machines (TPMs). The TPM was invented in the late 19th century, but most of them were made in the first half of the 20th century, up until the time that the advent of digital computers consigned them to museums. This paper describes the basic principles of a TPM, reviews how many were constructed around the world and discusses the method devised by Arthur Doodson at the LTI for the determination of harmonic tidal constants from tide gauge data. These constants were required in order to set up the TPMs for predicting the heights and times of the tides. Although only 3 of the 30-odd TPMs constructed were employed in operational tidal prediction at the LTI, Doodson was responsible for the design and oversight of the manufacture of several others. The paper demonstrates how the UK, and the LTI and Doodson in particular, played a central role in this area of tidal science.


2020 ◽  
Vol 4 (3) ◽  
Author(s):  
Svitlana Rudnytska ◽  

The article presents a theoretical generalization of analysis of the issue of mythological resources for constructing of personality’s experience, conditioned by a person's ability to cognize the world by means of symbolic forms. In line with psychological hermeneutics the discursive constructing of personality's experience is considered as a set of socio-psychological practices of building own identities by a person, which are based on assignment of norms and strategies of self-organization set up by culture; as integration of separate heterogeneous "discursive realities" of individual into a coherent whole by means of speech practices in process of personal generation of senses. The author proved that both generalizations of personality’s experience and adopted from outside “ready-made” socio-cultural concepts of mythological nature can act as conditions for new personal senses generation in the process of discursive constructing of experience. The article shows that resource for a myth as a volumetric context for actual being of a subject is its ability to fixate on a broad perspective, which in turn leads to comprehension of personality's scope of opportunities, its life horizon. It is emphasized that the significance of a myth in the process of constructing of personality’s experience is conditioned by its main psychological functions, which contribute to generation and retention of integrity of world’s image by a personality in its subjective life’s area, to creation of ideals and patterns of its potential life-fulfillments, to interruption of causal determination of life events, to removal of the issue of motivation and search for a sense.


2011 ◽  
Vol 236-238 ◽  
pp. 913-916
Author(s):  
Sheng Zhang ◽  
Xiang Zhou Li ◽  
Chun Tao Kuang

To investigate the antioxidant effect in vitro of JiangHuang JiangZhi capsule, different concentrations of content of capsule were determinated by DPPH assay method. Results showed Jianghuang Jiangzhi capsule had antioxidant capacity on eliminating DPPH free radicals.


2013 ◽  
Vol 6 (5) ◽  
pp. 1424-1432 ◽  
Author(s):  
Lais Bukman ◽  
Alessandro Campos Martins ◽  
Érica Oliveira Barizão ◽  
Jesuí Vergílio Visentainer ◽  
Vitor de Cinque Almeida

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
J Krvavac ◽  
E Kovac-Besovic ◽  
J Toromanovic ◽  
M Salihovic ◽  
I Tahirovic ◽  
...  

2018 ◽  
Vol 22 (1) ◽  
pp. 33-42
Author(s):  
◽  
Tajuddin Bantacut ◽  
Sapta Raharja

Abstract Utilization of cocoa bean to be a derivative products in industrial is wide enough, that it is necessary to determine the priority of the processed products development. This study aimed to determine the prospective processed cocoa products with a system approach using Bayes method and assessed the potential of added value by using Hayami method. Based on several assessment criteria indicated that chocolate bar is the priority product that needs to be developed and followed by several other processed products. This development was able to produce the added value of Rp 135.000 per kg of cocoa beans. Result indicated that by processing the cocoa beans into chocolate bar could provide a considerable income for the businessman.


Author(s):  
N. S. Levgerova ◽  
Е. S. Salina ◽  
I. А. Sidorova

The results of the technological assessment of new apple, cherry, black currant, red currant and gooseberry cultivars of VNIISPK breeding for the suitability for the natural food production are given. As a result, the cultivars that are promising for cultivation in raw plantings have been selected. For the production of raw materials in the juice industry, apple cultivars with a high juice yield and content of soluble solids higher than 10.0% were selected: ‘Bolotovskoye’ (Vf), ‘Candil Orlovsky’ (Vf), ‘Osipovskoye’ (3x), ‘Rozhdestvenskoye’ ((Vf + 3x), ‘Zaryanka’ (Vm), ‘Priokskoye’ ((Vf + Co), etc. Based on the long-term study of cultivars for their suitability for compote, jam and jelly, the cultivars that are most suitable for these types of processing are identified. It has been found that taking into account the daily needs of vitamins C and P as the most important antioxidants, all processed products from black currant can serve as their sources, all processed products from cherries, as well as apple juice and gooseberry marmalade can serve as a source of P-active compounds. All columnar apple cultivars as well as ‘Bolotovskoye’, ‘Rozhdestvenskoye’, ‘Veteran’, ‘Imrus’, etc. show high suitability for the production of apple chips. Cherry cultivars ‘Rovesnitsa’, ‘Putinka’, ‘Podarok Uchitelyam’ and ‘Novella’ are suitable for dried fruit. Based on the long-term studies of the technological qualities of the VNIISPK gene pool, a new generation assortment has been formed that has an optimal combination of chemical and technological indicators of fruits that meet modern technological requirements and are suitable for cultivation in the raw plantations of Central Russia.


2017 ◽  
Vol 31 (2) ◽  
pp. 156-162 ◽  
Author(s):  
O. V. Schneider

The article summarizes the main approaches in the definition of business valuation the economic entity. In the process of business valuation, taking into account the risks of financial and economic activities necessary to obtain information on what stage the owner implements the business will receive income. The most difficult task is the impossibility of accurate prediction in determining the level of income and the determination of a discount rate capitalization of future incomes due to the instability of the economy, both in the country and around the world.


2019 ◽  
Vol 11 (3) ◽  
pp. 771-784
Author(s):  
Elisa Tatiana S. Damasceno ◽  
Regiamara R. Almeida ◽  
Bruna C. Pires ◽  
Flavia Viana A. Dutra ◽  
Keyller B. Borges ◽  
...  

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