Preventive Potential and Mechanism of Dietary Polyphenols on the Formation of Heterocyclic Aromatic Amines
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Received: 1 June 2020 Revised: 19 June 2020 Accepted: 19 June 2020 DOI: 10.1002/fft2.30 REVIEW ARTICLE Preventive potential and mechanism of dietary polyphenols on the formation of heterocyclic aromatic amines Hui Cao1 Bing-Huei Chen2 Baskaran Stephen Inbaraj2 Lei Chen1 Gerardo Alvarez-Rivera3 Alejandro Cifuentes3 Nana Zhang4 Deng-Jye Yang5 Jesus Simal-Gandara6 Mingfu Wang4 Jianbo Xiao7 1 College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China 2 Department of Food Science, Fu Jen Catholic University, New Taipei City, Taiwan 3 Laboratory of Foodomics, Institute of Food Science Research, CIAL, CSIC, Madrid, Spain 4 School of Biological Sciences, The University of Hong Kong, Hong Kong 5 Institute of Food Safety and Health Risk Assessment, National Yang-Ming University, Taipei, Taiwan 6 Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo-Ourense Campus, Ourense, Spain 7 Institute of Food Safety and Nutrition, Jinan University, Guangzhou, China Correspondence Jianbo Xiao, Institute of Food Safety and Nutri- Abstract tion, Jinan University, Guangzhou 510632, China. Thermal processing is the most important and popular domestic cooking method. More Email: [email protected] than 30 heterocyclic aromatic amines have been identified in cooked meat using var- Mingfu Wang, School of Biological Sciences, The University of Hong Kong, Pokfulam Road, ious methods. This review highlights preventive potential and mechanism of dietary Hong Kong. polyphenols on the formation of heterocyclic amines. Tea, coffee, fruits, vegetable, and Email: [email protected] Jesus Simal-Gandara, Nutrition and Bromatol- spice extracts rich in polyphenols exerted significant inhibition against the formation of ogy Group, Department of Analytical Chem- heterocyclic aromatic amines. Some polyphenols, such as naringenin and epigallocate- istry and Food Science, Faculty of Food Science and Technology, University of Vigo-Ourense chin 3-O-gallate, can actively participate into food chemistry reaction to trap Strecker Campus, E-32004 Ourense, Spain. aldehyde and lower the formation of heterocyclic aromatic amines. In addition, some Email: [email protected] polyphenols can lower the mutagenicity of heterocyclic aromatic amines. More specif- ically, polyphenols possessing two hydroxyl groups at the meta position of aromatic ring are the most efficient one, but the presence of carboxylic or alkyl groups as sub- stituents in the aromatic ring slightly reduced the inhibitory effect. KEYWORDS heterocyclic aromatic amines, inhibition, polyphenols, structure–activity relationship This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. © 2020 The Authors. Food Frontiers published by John Wiley & Sons Australia, Ltd and Nanchang University, Northwest University, Jiangsu University, Zhejiang Univer- sity, Fujian Agriculture and Forestry University 134 wileyonlinelibrary.com/journal/fft2 Food Frontiers. 2020;1:134–151. CAO ET AL. 135 1 HAZARDS LINKED TO FOOD THERMAL 2 FORMATION OF HETEROCYCLIC AROMATIC PROCESSING AMINES Thermal processing is the most important and popular domestic The formation pathways of HAAs are usually investigated in chemi- cooking method. It has many benefits such as improving nutri- cal model systems to reduce side reactions and exclude the effects tional quality, enhancing bioavailability of nutrients, prolonging of other components. According to the structure differences and for- shelf life, obtaining better flavor, producing bioactive compounds, mation pathway, HAAs can be divided into aminoimidazoazarenes and improving food safety (Zhao et al., 2019). On the other hand, (AIAs) and pyrolytic HAAs. AIAs include quinoxalines (IQx, MeIQx, it can also bring some undesired consequences including losing DiMeIQx, etc.), quinolines (IQ, MeIQ, etc.), and pyridines (PhIP, DMIP, nutrients, forming toxic compounds, causing unpleasant flavor, etc.), while pyrolytic HAAs mainly include α-carbolines (AαC, MeAαC), and so on (Friedman, 2015; Mogol & Gokmen, 2016). In particular, β-carbolines (harman and norharman), γ-carbolines (Trp-P-1, Trp-P-2), the mutagenic compounds, such as acrylamide, acrolein, polycyclic δ-carbolines (Glu-P-1, Glu-P-2), and phenyl pyridine (Phe-P-1) (Bus- aromatic hydrocarbons (PAHs), and heterocyclic aromatic amines quets, Bordas, Toribio, Puignou, & Galceran, 2004; Kizil, Oz, & Besler, (HAAs), are formed during the thermal processing of various foods 2011). (Fasano, Yebra-Pimentel, Martinez-Carballo, & Simal-Gandara, 2016; Garcia-Falcon & Simal-Gandara, 2005; Rey-Salgueiro, Garcia-Falcon, Martinez-Carballo, Gonzalez- Barreiro & Simal-Gandara, 2009;Rey- 2.1 Formation of quinoxalines and quinolines Salgueiro, Garcia-Falcon, Martinez-Carballo, & Simal-Gandara, 2008, HAAs Rey-Salgueiro, Garcia-Falcon, Martinez-Carballo, & Simal-Gandara, 2009; Singh, Agarwal, & Simal-Gandara, 2020; Viegas, Yebra-Pimentel, AIAs are mainly formed by dehydration and cyclization of amino acids Martinez-Carballo, Simal-Gandara, & Ferreira, 2014; Yebra-Pimentel, and sugars at temperatures between 100 and 300◦C to form pyrrole Fernandez-Gonzalez, Martinez-Carballo, & Simal-Gandara, 2012; or pyrazine, and then condensation with creatinine and aldehydes Yebra-Pimentel, Martinez-Carballo, Regueiro, & Simal-Gandara, produced by Strecker degradation (Kizil et al., 2011). Specifically, as for 2013). More than 30 HAAs compounds (Figure 1) have been identified the formation of IQ-type HAAs, an early study has proposed a possible in cooked meat using various methods. HAAs compounds can be pathway, as shown in Figure 2, creatinine forms the aminoimidazole classified into thermic and pyrolytic types according to their formation part through cyclization and dehydration, while the remaining part of temperature. The thermic HAAs with a chemical structure of aminoim- IQ-type HAAs is derived from Strecker degradation products such as idazoazarene are commonly formed under relative low temperatures pyridine and pyrazine. The two parts are then linked by butyraldehyde (∼200◦C), and the pyrolytic HAAs (mainly amino-carbolines) are pro- condensation via Strecker reaction products such as aldehyde or duced by pyrolysis of amino acids and proteins at higher temperatures Schiff base (Jägerstad, Reuterswärd, Olsson, et al. 1983; Jägerstad, (250◦C) (Zamora & Hidalgo, 2020). Reuterswärd, Öste et al., 1983). This pathway was further validated The levels of specific HAAs compounds are different with the meat and refined by Nyhammar (1986). However, Jones and others believed type, cooking method, temperature, time, and doneness level. Other that in the case of the same precursors, creatinine might condense factors are determined by the various food substrates, including pH, with aldehyde first before reacting with pyridine or pyrazine to form IQ contents of precursors, presence of certain divalent ions, types of or IQx compounds (Jones & Weisburger, 1988). Subsequently, Pearson amino acids, and content of substances with enhancing or inhibit- and others proposed two free radical pathways (Figure 2), which ing effects (Gibis, 2016). The imidazo moiety is originated from the suggest that alkylpyridine free radicals react with creatinine to form creatinine; moreover, if the creatinine is absent, no imidazoquinoline IQ and MeIQ, while MeIQx and 4,8-DiMeIQx are formed between and imidazoquinoxaline are formed. However, the generation of the dialkylpyrazine free radicals and creatinine. Specifically, the former pyrolytic HAAs does not require the existence of creatinine. PhIP involves bimolecular ring formation from the enaminol form of the appears to be formed more easily in chicken than in beef, pork or glycoaldehyde alkylamine and followed by the oxidative formation of fish, while the amount of MeIQx in cooked chicken is usually lower free radicals. The later involves N,N1-diakylpyrasinium ions formation than in cooked beef and pork. For a given cooking condition, the from glyoxal monoalkylamine and then form the free radicals through amount of PhIP, MeIQx, and AαC in ordinary muscle was higher than reduction (Pearson, Chen, Gray, & Aust, 1992). the dark muscle. It also can be observed that less browning inten- sity on the meat surface of the dark muscle than the ordinary mus- cle, enhances the formation of HAAs. Moreover, the ordinary muscle 2.2 Formation of pyridines HAAs contains higher free amino acids, moisture, and nitrogen compounds than dark muscle, which also facilitate the formation of carcinogenic Phenylalanine and creatinine have been confirmed to be the precursors HAAs. of PhIP formation via 13C labeling method, while glucose was found not 136 CAO ET AL. FIGURE 1 Chemical structures of heterocyclic amines formed during food processing CAO ET AL. 137 FIGURE 2 Proposed pathways for the formation of quinoxalines (IQx, MeIQx, DiMeIQx, etc.) and quinolines (IQ, MeIQ, etc.) HAAs a necessary precursor under dry heating conditions and excessive glu- nitrogen, and benzene ring of phenylalanine, as well as the amino nitro- cose may inhibit PhIP formation to a certain extent (Felton & Knize, gen and the nitrogen atom in the ring of creatine all participate in the 1990; Skog, Johansson, & Jägerstad, 1998). The formation of PhIP in formation of PhIP. Therefore,