The feasibility study of natural pigments as food colorants and seasonings pigments safety on dried tofu coloring

In order to improve appetite, attract consumers and even conform to the food culture, food coloring has become one of the necessary links in modern food processing. For example, dried-tofu will be colored by adding artificial food colors (AFCs) such as sunset yellow, cochineal red A or other seasoni...

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Main Authors: Wei-Sheng Lin, Pei Hua He, Chi-Fai Chau, Bo-Kang Liou, Shiming Li, Min-Hsiung Pan
Format: Article
Language:English
Published: Tsinghua University Press 2018-09-01
Series:Food Science and Human Wellness
Online Access:http://www.sciencedirect.com/science/article/pii/S2213453018300995
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author Wei-Sheng Lin
Pei Hua He
Chi-Fai Chau
Bo-Kang Liou
Shiming Li
Min-Hsiung Pan
author_facet Wei-Sheng Lin
Pei Hua He
Chi-Fai Chau
Bo-Kang Liou
Shiming Li
Min-Hsiung Pan
author_sort Wei-Sheng Lin
collection DOAJ
description In order to improve appetite, attract consumers and even conform to the food culture, food coloring has become one of the necessary links in modern food processing. For example, dried-tofu will be colored by adding artificial food colors (AFCs) such as sunset yellow, cochineal red A or other seasonings like soy sauce. However, the dispute persists about whether AFCs are harmful to health. Some studies indicate AFCs affect children’s intelligence and attention, cause hyperactivity, and allergy when children consumed ≥ 50 mg. In addition, researches showed that chemical soy sauce produces a trace of methylglyoxal (MGO) in the manufacturing process, which is related to diseases such as oxidative stress, diabetes, and cognitive deterioration. Therefore, natural pigments are relatively new and promising strategy for replacing high-risk AFCs. Thus, the objective of this study was to use dried-tofu as a natural colorants coloring screening platform, through the concept of three primary colors to discuss the coloring effects of natural colorants in Taiwan in double –phase (liquid phase to solid phase) food coloring system and assess the effects of MGO on PC12 neuron cellular morphology and cell cycle at the dietary exposure in soy sauce. Our results showed that formula G:R = 0.2:0.8 and C:R = 0.08:0.92 were coloring by combined natural colorants had the same eye sensory quality acceptance of consumer and had the intention to purchase. Furthermore, the results from the PC12 cell suggested that dietary exposure of methylglyoxal (<50 μM) in soy sauce did not affect neuron cellular morphology and cell cycle significantly. Overall, Gardenia Yellow, Curcumin, and Radish Red could overcome the application restrictions in multiple-phase food coloring system and simultaneously soy sauce as a coloring agent was safety. It showed the possibility of them as food colorants on dried-tofu. Keywords: Natural colorants, Dried-tofu, The coloring from liquid phase system to solid phase system on dried-tofu
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institution Kabale University
issn 2213-4530
language English
publishDate 2018-09-01
publisher Tsinghua University Press
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series Food Science and Human Wellness
spelling doaj-art-56780ea701fe4e2c8449e478f4e0e3542025-02-02T23:31:22ZengTsinghua University PressFood Science and Human Wellness2213-45302018-09-0173220228The feasibility study of natural pigments as food colorants and seasonings pigments safety on dried tofu coloringWei-Sheng Lin0Pei Hua He1Chi-Fai Chau2Bo-Kang Liou3Shiming Li4Min-Hsiung Pan5Institute of Food Science and Technology, National Taiwan University, Taipei, TaiwanInstitute of Food Science and Technology, National Taiwan University, Taipei, TaiwanDepartment of Food Science and Biotechnology, National Chung Hsing University, Taichung, TaiwanDepartment of Food Science and Technology, Central Taiwan University of Science and Technology, Taichung, TaiwanDepartment of Food Science, Rutgers University, New Brunswick, NJ, USAInstitute of Food Science and Technology, National Taiwan University, Taipei, Taiwan; Corresponding author at: Institute of Food Science and Technology, National Taiwan University, 1, Sec. 4, Roosevelt Rd., Taipei, 106, Taiwan.In order to improve appetite, attract consumers and even conform to the food culture, food coloring has become one of the necessary links in modern food processing. For example, dried-tofu will be colored by adding artificial food colors (AFCs) such as sunset yellow, cochineal red A or other seasonings like soy sauce. However, the dispute persists about whether AFCs are harmful to health. Some studies indicate AFCs affect children’s intelligence and attention, cause hyperactivity, and allergy when children consumed ≥ 50 mg. In addition, researches showed that chemical soy sauce produces a trace of methylglyoxal (MGO) in the manufacturing process, which is related to diseases such as oxidative stress, diabetes, and cognitive deterioration. Therefore, natural pigments are relatively new and promising strategy for replacing high-risk AFCs. Thus, the objective of this study was to use dried-tofu as a natural colorants coloring screening platform, through the concept of three primary colors to discuss the coloring effects of natural colorants in Taiwan in double –phase (liquid phase to solid phase) food coloring system and assess the effects of MGO on PC12 neuron cellular morphology and cell cycle at the dietary exposure in soy sauce. Our results showed that formula G:R = 0.2:0.8 and C:R = 0.08:0.92 were coloring by combined natural colorants had the same eye sensory quality acceptance of consumer and had the intention to purchase. Furthermore, the results from the PC12 cell suggested that dietary exposure of methylglyoxal (<50 μM) in soy sauce did not affect neuron cellular morphology and cell cycle significantly. Overall, Gardenia Yellow, Curcumin, and Radish Red could overcome the application restrictions in multiple-phase food coloring system and simultaneously soy sauce as a coloring agent was safety. It showed the possibility of them as food colorants on dried-tofu. Keywords: Natural colorants, Dried-tofu, The coloring from liquid phase system to solid phase system on dried-tofuhttp://www.sciencedirect.com/science/article/pii/S2213453018300995
spellingShingle Wei-Sheng Lin
Pei Hua He
Chi-Fai Chau
Bo-Kang Liou
Shiming Li
Min-Hsiung Pan
The feasibility study of natural pigments as food colorants and seasonings pigments safety on dried tofu coloring
Food Science and Human Wellness
title The feasibility study of natural pigments as food colorants and seasonings pigments safety on dried tofu coloring
title_full The feasibility study of natural pigments as food colorants and seasonings pigments safety on dried tofu coloring
title_fullStr The feasibility study of natural pigments as food colorants and seasonings pigments safety on dried tofu coloring
title_full_unstemmed The feasibility study of natural pigments as food colorants and seasonings pigments safety on dried tofu coloring
title_short The feasibility study of natural pigments as food colorants and seasonings pigments safety on dried tofu coloring
title_sort feasibility study of natural pigments as food colorants and seasonings pigments safety on dried tofu coloring
url http://www.sciencedirect.com/science/article/pii/S2213453018300995
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