نتایج جستجو برای: colorants

تعداد نتایج: 741  

Journal: :Journal of Food, Nutrition and Agriculture 2018

2009
Marcos Gestal José Manuel Andrade

The importance of juice beverages in daily food habits makes juice authentication an important issue, for example, to avoid fraudulent practices. A successful classification model should address two important cornerstones of the quality control of juicebased beverages: to monitor the amount of juice and to monitor the amount (and nature) of other substances added to the beverages. Particularly,...

2009
Jürgen Fabian

To examine the strengths and limitations of the time-dependent density functional theory in calculating the absorption wavelengths of dye, 130, non-radical, radical and biradical coloured organic compounds, including perylenimide, porphyrin, azobenzene, quinone, croconaine, squaraine and push–pull-type colorants, were randomly selected. The first intense electronic transitions were satisfactori...

2009
Kazuyuki Sato Hideki Shima Jin Mizuguchi

The title compound, C(12)H(10)O(4)S, is a phenolic color developer used for leuco colorants. The two benzene rings with substituent hydr-oxy groups are nearly perpendicular to each other [dihedral angle = 91.5 (1)°]. There are inter-molecular O-H⋯O hydrogen bonds between an OH group of one mol-ecule and a sulfonyl O atom of a neighboring mol-ecule. One mol-ecule is hydrogen bonded to four symme...

2014
M Thoury M Réfrégiers L Bertrand

Photoluminescence has been exploited to characterize materials non-destructively since the early development of scientific studies on archaeological and cultural heritage materials [1]. First used as tool for qualitative visual examination of objects, luminescence spectroscopy, carried out at macroand micro-scale, allowed characterizing luminescence properties of cultural heritage and artists’ ...

Journal: :Food Analytical Methods 2022

Abstract Overexposure to food colorants above the allowed daily intake (ADI) level can provoke hyperactivity and other disturbed behaviors especially in children. Two new methods were developed separate five synthetic colorants, which Tartrazine (E102), Sunset Yellow (E110), Allura Red (E129), Carmoisine (E122), Brilliant Blue (E133). They are labeled on a large variety of commercial products E...

Journal: :Indian journal of science and technology 2021

Background/Objectives: The utilization of natural colorant can improve food appeal. This study determined the potential Clitoria ternatea flower extract as a substitute for synthetic colorants. Methods: researchers prepared gummy candies using 100mL aqueous extracts from various weight samples C. flowers. Fifty candy eaters with different age brackets were randomly chosen respondents this study...

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