Additives are now an established part of our packaged food. Some, like colouring agents and flavouring compounds are hardly necessary or even redundant. Others, mainly antimicrobials and antioxidants, are very important. Antioxidants are not only added to food, but also to cosmetics, pharmaceuticals and industrial products. Dodecyl gallate belongs with propyl- and octyl-gallate to the synthetic esters of gallic acid. These lipid-soluble phenols are very effective antioxidants. We found contact allergy in 4 of 10 workers having only limited contact with dodecyl gallate in the very low concentration of 0.05%. It is important to recognize its strong sensitizing capacity. Workers working with dodecyl gallate should avoid direct skin contact.
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http://dx.doi.org/10.1111/j.1600-0536.1987.tb01449.x | DOI Listing |
Int J Biol Macromol
January 2025
SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Key Laboratory for Marine Food Science and Technology, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China. Electronic address:
Corn starch inclusion complexes of alkyl gallates (typical phenololipid representatives), including stearyl gallate, dodecyl gallate, octyl gallate, and hexadecyl gallate, were synthesized by using a heat treatment method. Such inclusion complexes exhibited significantly improved two-step release properties for gallic acid. In other words, gallic acid was generated via the breakdown of alkyl gallates that were released from inclusion complexes in an everted rat intestinal sac model, as determined by HPLC-UV analysis.
View Article and Find Full Text PDFCarbohydr Polym
January 2025
College of Life Science, Capital Normal University, 100048 Beijing, China. Electronic address:
This study investigated the effects of waxy (Wx) protein on wheat V-type resistant starch (RS) formation, molecular structure, and physicochemical properties. We discovered that waxy protein deletions led to a rise in B- and C-type starch granules, while reducing A-type starch granules, amylose, and slowly digestible starch contents. Further, dodecyl gallate (DG) addition significantly increased RS content, and molecular dynamics simulations indicated that amylose and DG can form stable complexes.
View Article and Find Full Text PDFFood Chem
December 2024
SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Key Laboratory for Marine Food Science and Technology, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China. Electronic address:
The freeze-drying approach was used to create inclusion complexes utilizing alkyl gallates and β-cyclodextrin, namely dodecyl gallate, octyl gallate, butyl gallate, and ethyl gallate, which are exemplary examples of phenolic esters. The everted-rat-gut-sac model demonstrated that the inclusion complexes released alkyl gallates, which were subsequently hydrolyzed to generate free gallic acid, as evidenced by HPLC-UV analysis. Both gallic acid and short-chain alkyl gallates were capable of permeating the small intestinal membrane.
View Article and Find Full Text PDFPolymers (Basel)
June 2024
Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy.
ACS Appl Mater Interfaces
April 2024
School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, Zhejiang, China.
Bioinspired photoactive composites, in terms of photodynamic inactivation, cost-effectiveness, and biosafety, are promising alternatives to antibiotics for combating bacterial infections while avoiding antibacterial resistance. However, the weak bacterial membrane affinity of the photoactive substrate and the lack of synergistic antibacterial effect remain crucial shortcomings for their antibacterial applications. Herein, we developed a hydrophobic film from food antioxidant lauryl gallate covalently functionalized chitosan (LG--CS conjugates) through a green radical-induced grafting reaction that utilizes synergistic bacteria capture, contact-killing, and photodynamic inactivation activities to achieve enhanced bactericidal and biofilm elimination capabilities.
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