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Van Buiten CB, Elias RJ. Impact of pre- and post-fermentation fining with polyvinylpolypyrrolidone on the chemical stability and aromatic profile of Viognier wine. J Food Sci 2024; 89:4286-4297. [PMID: 38858776 DOI: 10.1111/1750-3841.17141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/29/2024] [Accepted: 05/09/2024] [Indexed: 06/12/2024]
Abstract
Polyvinylpolypyrrolidone (PVPP) is a synthetic, insoluble polymer that can be added to white wines to improve the chemical stability of the final product by precipitating unstable low molecular weight phenolic compounds responsible for visual defects and undesirable flavor characteristics (e.g., excessive bitterness and/or astringency). The objective of this study was to characterize the effects of PVPP on the quality characteristics of Viognier wine when added pre- or post-fermentation as compared to an untreated control wine. Both PVPP-treated wines contained significantly lower concentrations of monomeric phenolics and browning pigments than the control wine (p ≤ 0.05). The addition of PVPP prior to fermentation conferred protection against oxidation of the wine as measured by acetaldehyde concentration (p ≤ 0.05). Analysis of the volatile aroma profile of each wine by headspace solid phase microextraction gas chromatographymass spectrometry (HS-SPME-GC-MS) revealed that the overarching aroma profiles of the PVPP-treated wines were significantly different from the control wine, but there was no difference between wines treated with PVPP pre-fermentation versus those treated post-fermentation. Specifically, statistically significant differences were observed in 9 of the 22 quantified aroma compounds, including those notably associated with the "stone fruit" aroma of Viognier. A negative correlation was identified between aroma compound concentration removal and the hydrophobicity of each compound, suggesting that the observed differences in aroma may be due to adsorption of aroma compounds by PVPP. The findings from this study present risks and benefits to wine quality upon treatment with PVPP at commercially recommended levels, and provide potentially valuable information for industrial wine producers.
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Affiliation(s)
- Charlene B Van Buiten
- Department of Food Science and Human Nutrition, Colorado State University, Fort Collins, Colorado, USA
| | - Ryan J Elias
- Department of Food Science, The Pennsylvania State University, University Park, Pennsylvania, USA
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2
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Khalaf SS, Shalaby OA, Hassan AR, El-Kherbetawy MK, Mehanna ET. Acacia nilotica stem bark extract ameliorates obesity, hyperlipidemia, and insulin resistance in a rat model of high fat diet-induced obesity. J Tradit Complement Med 2023. [DOI: 10.1016/j.jtcme.2023.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023] Open
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3
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Effect of Cocoa Roasting on Chocolate Polyphenols Evolution. Antioxidants (Basel) 2023; 12:antiox12020469. [PMID: 36830027 PMCID: PMC9952295 DOI: 10.3390/antiox12020469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/01/2023] [Accepted: 02/07/2023] [Indexed: 02/16/2023] Open
Abstract
Cocoa and chocolate antioxidants might contribute to human health through, for instance, blood flow improvement or blood pressure and glycemia reduction, as well as cognitive function improvement. Unfortunately, polyphenol content is reduced during cocoa fermentation, drying, roasting and all the other phases involved in the chocolate production. Here, we investigated the evolution of the polyphenol content during all the different steps of chocolate production, with a special emphasis on roasting (3 different roasting cycles with 80, 100, and 130 °C as maximum temperature). Samples were followed throughout all processes by evaluating the total polyphenols content, the antioxidant power, the epicatechin content, and epicatechin mean degree of polymerization (phloroglucinol adducts method). Results showed a similar trend for total polyphenol content and antioxidant power with an unexpected bell-shaped curve: an increase followed by a decrease for the three different roasting temperatures. At the intermediate temperature (100 °C), the higher polyphenol content was found just after roasting. The epicatechin content had a trend similar to that of total polyphenol content but, interestingly, the mean degree of polymerization data had the opposite behavior with some deviation in the case of the highest temperature, probably due to epicatechin degradation. It seems likely that roasting can free epicatechin from oligomers, as a consequence of oligomers remodeling.
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4
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From Cocoa to Chocolate: Effect of Processing on Flavanols and Methylxanthines and Their Mechanisms of Action. Int J Mol Sci 2022; 23:ijms232214365. [PMID: 36430843 PMCID: PMC9698929 DOI: 10.3390/ijms232214365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 11/22/2022] Open
Abstract
Despite the health benefits associated with the ingestion of the bioactive compounds in cocoa, the high concentrations of polyphenols and methylxanthines in the raw cocoa beans negatively influence the taste, confer the astringency and bitterness, and affect the stability and digestibility of the cocoa products. It is, therefore, necessary to process cocoa beans to develop the characteristic color, taste, and flavor, and reduce the astringency and bitterness, which are desirable in cocoa products. Processing, however, affects the composition and quantities of the bioactive compounds, resulting in the modification of the health-promoting properties of cocoa beans and chocolate. In this advanced review, we sought to better understand the effect of cocoa's transformational process into chocolate on polyphenols and methylxanthine and the mechanism of action of the original flavanols and methylxanthines. More data on the cocoa processing effect on cocoa bioactives are still needed for better understanding the effect of each processing step on the final polyphenolic and methylxanthine composition of chocolate and other cocoa products. Regarding the mechanisms of action, theobromine acts through the modulation of the fatty acid metabolism, mitochondrial function, and energy metabolism pathways, while flavanols mainly act though the protein kinases and antioxidant pathways. Both flavanols and theobromine seem to be involved in the nitric oxide and neurotrophin regulation.
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Peña-Correa RF, Ataç Mogol B, Fogliano V. The impact of roasting on cocoa quality parameters. Crit Rev Food Sci Nutr 2022; 64:4348-4361. [PMID: 36382628 DOI: 10.1080/10408398.2022.2141191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Roasting is an essential process in cocoa industry involving high temperatures that causes several physicochemical and microstructural changes in cocoa beans that ensure their quality and further processability. The versatility in roasting temperatures (100 - 150 °C) has attracted the attention of researchers toward the exploration of the effects of different roasting conditions on the color, proximal composition, cocoa butter quality, concentration of thermolabile compounds, formation of odor-active volatile organic compounds, generation of melanoidins, production of thermal processes contaminants in cocoa nibs, among others. Some researchers have drowned in exploring new roasting parameters (e.g., the concentration of water steam in the roasting chamber), whilst others have adapted novel heat-transfer techniques to cocoa nibs (e.g., fluidized bed roasting and microwaves). A detailed investigation of the physicochemical phenomena occurring under different cocoa roasting scenarios is lacking. Therefore, this review provides a comprehensive analysis of the state of art of cocoa roasting, identifies weak and mistaken points, presents research gaps, and gives recommendations to be considered for future cocoa studies.
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Affiliation(s)
- Ruth Fabiola Peña-Correa
- Department of Food Quality and Design, Wageningen University & Research, Wageningen, The Netherlands
| | - Burçe Ataç Mogol
- Hacettepe Üniversitesi, Department of Food Engineering, Food Quality and Safety (FoQuS) Research Group, Beytepe, Ankara, Turkey
| | - Vincenzo Fogliano
- Department of Food Quality and Design, Wageningen University & Research, Wageningen, The Netherlands
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6
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Physicochemical Characterization of Interactions between Blueberry Polyphenols and Food Proteins from Dairy and Plant Sources. Foods 2022; 11:foods11182846. [PMID: 36140972 PMCID: PMC9497991 DOI: 10.3390/foods11182846] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/19/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
Polyphenols are widely known for their benefits to human health; however, dietary intake of this class of compounds is low in the United States due to low intake of fruits and vegetables. Dairy foods (i.e., milk, yogurt) have been shown to increase polyphenol bioavailability via protein–polyphenol interactions, which may have important implications for human health. Increasing consumer interest in sustainability and health has led to the introduction of a variety of novel plant-based proteins and related food products as dairy alternatives. This study compared whey, a popular dairy-based food protein, to pea and hemp proteins for their abilities to form complexes with polyphenols from blueberries, which are a widely consumed fruit in the US with demonstrated health effects. Physical and chemical characteristics of each protein extract in the presence and absence of blueberry polyphenols were investigated using a variety of spectroscopic methods. The influence of polyphenol complexation on protein digestion was also assessed in vitro. While all proteins formed complexes with blueberry polyphenols, the hemp and pea proteins demonstrated greater polyphenol binding affinities than whey, which may be due to observed differences in protein secondary structure. Polyphenol addition did not affect the digestion of any protein studied. Solution pH appeared to play a role in protein–polyphenol complex formation, which suggests that the effects observed in this model food system may differ from food systems designed to mimic other food products, such as plant-based yogurts. This study provides a foundation for exploring the effects of plant-based proteins on phytochemical functionality in complex, “whole food” matrices, and supports the development of plant-based dairy analogs aimed at increasing polyphenol stability and bioavailability.
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Weikart DK, Indukuri VV, Racine KC, Coleman KM, Kovac J, Cockburn DW, Hopfer H, Neilson AP, Lambert JD. Effect of processing on the anti-inflammatory efficacy of cocoa in a high fat diet-induced mouse model of obesity. J Nutr Biochem 2022; 109:109117. [DOI: 10.1016/j.jnutbio.2022.109117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 05/16/2022] [Accepted: 06/24/2022] [Indexed: 10/31/2022]
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8
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Wang R, Wang L, Zhang L, Wan S, Li C, Liu S. Solvents effect on phenolics, iridoids, antioxidant activity, antibacterial activity, and pancreatic lipase inhibition activity of noni (Morinda citrifolia L.) fruit extract. Food Chem 2022; 377:131989. [PMID: 35008024 DOI: 10.1016/j.foodchem.2021.131989] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 11/26/2021] [Accepted: 12/29/2021] [Indexed: 11/04/2022]
Abstract
This study focused on the relationship between content levels of phytochemicals and the biological activities of noni (Morinda Citrifolia L.) fruit extracts (NFEs) prepared with traditional solvents and deep eutectic solvents (DESs). The results indicated the total phenolic content in Bet-Gly (Betaine: Glycerol) extracts (11.89 mg GAE/g DW) and total iridoid content in 70% ethanol extracts (26.38 mg CE/g DW) were the highest. A total of 17 compounds were identified and quantified in NFEs. Traditional solvent extracts, except ethyl acetate, exhibited higher antioxidant activities than DESs. Three DES extracts showed higher activities against pancreatic lipase than traditional solvent extracts. Multivariate analysis revealed that the type of extraction solvent exerts a significant influence on the phytochemical compositions and biological activities of NFEs. This study provided valuable information on the efficient extraction of phytochemicals from noni fruits and DESs are promising green solvent for the extraction of bioactive compounds from noni fruits.
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Affiliation(s)
- Ruimin Wang
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Lu Wang
- School of Food Science and Engineering, Hainan University, Haikou 570228, China; Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China; Key Laboratory of Tropical Agricultural Products Processing Technology of Haikou, Haikou 570228, China
| | - Lin Zhang
- School of Food Science and Engineering, Hainan University, Haikou 570228, China; Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China; Key Laboratory of Tropical Agricultural Products Processing Technology of Haikou, Haikou 570228, China
| | - Sitong Wan
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Congfa Li
- School of Food Science and Engineering, Hainan University, Haikou 570228, China; Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China; Key Laboratory of Tropical Agricultural Products Processing Technology of Haikou, Haikou 570228, China.
| | - Sixin Liu
- Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China; Key Laboratory of Tropical Agricultural Products Processing Technology of Haikou, Haikou 570228, China; School of Science, Hainan University, Haikou 570228, China.
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9
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Younes A, Li M, Karboune S. Cocoa bean shells: a review into the chemical profile, the bioactivity and the biotransformation to enhance their potential applications in foods. Crit Rev Food Sci Nutr 2022; 63:9111-9135. [PMID: 35467453 DOI: 10.1080/10408398.2022.2065659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
During processing, cocoa bean shells (CBS) are de-hulled from the bean and discarded as waste. Undermined by its chemical and bioactive composition, CBS is abundant in dietary fiber and phenolic compounds that may serve the valorization purpose of this by-product material into prebiotic and functional ingredients. In addition, the cell-wall components of CBS can be combined through enzymatic feruloylation to obtain feruloylated oligo- and polysaccharides (FOs), further enhancing the techno-functional properties. FOs have attracted scientific attention due to their prebiotic, antimicrobial, anti-inflammatory and antioxidant functions inherent to their structural features. This review covers the chemical and bioactive compositions of CBS as well as their modifications upon cocoa processing. Physical, chemical, and enzymatic approaches to extract and bio-transform bioactive components from the cell wall matrix of CBS were also discussed. Although nonspecific to CBS, studies were compiled to investigate efforts done to extract and produce feruloylated oligo- and polysaccharides from the cell wall materials.
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Affiliation(s)
- Amalie Younes
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Montreal, Québec, Canada
| | - Mingqin Li
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Montreal, Québec, Canada
| | - Salwa Karboune
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Montreal, Québec, Canada
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10
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Rojas M, Granados D, Osorio J, Chejne F. Analysis of cocoa particle roasting process in a μ-reactor. J FOOD ENG 2022. [DOI: 10.1016/j.jfoodeng.2022.111102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Physicochemical Phenomena in the Roasting of Cocoa (Theobroma cacao L.). FOOD ENGINEERING REVIEWS 2022. [DOI: 10.1007/s12393-021-09301-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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12
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McClure AP, Hopfer H, Grün IU. Optimizing consumer acceptability of 100% chocolate through roasting treatments and effects on bitterness and other important sensory characteristics. Curr Res Food Sci 2022; 5:167-174. [PMID: 35072104 PMCID: PMC8761865 DOI: 10.1016/j.crfs.2022.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/06/2022] [Accepted: 01/06/2022] [Indexed: 11/30/2022] Open
Abstract
Chocolate is a highly appreciated food around the world which is rich in polyphenols but usually sweetened to mask inherent bitterness and astringency. Here we aim to determine how roast time and temperature in cacao roasting affect bitterness intensity and consumer liking of chocolate. We have also determined the relationship between consumer liking and perceived bitterness, astringency, sourness, sweetness, and cocoa intensity. Unroasted cacao from three different origins was roasted according to a designed experiment into a total of 27 treatments which were evaluated for overall liking and sensory attribute intensities by 145 chocolate consumers. We demonstrate that bitterness, sourness and astringency of 100% chocolate can be reduced through optimizing roasting temperature and time. Reduction of bitterness, sourness and astringency were significantly correlated with increased acceptability of the unsweetened chocolate samples. Aside from roasting, cacao origin including base levels of bitterness, astringency, and sourness should also be considered when optimizing consumer acceptability. Perceived cocoa flavor intensity, being highly positively correlated to liking, is likely to also be an important consideration for raw material selection. As for optimal roast profiles, for the cacao origins in our study, more intense roasting conditions such as 20 min at 171 °C, 80 min at 135 °C, and 54 min at 151 °C, all led to the most acceptable unsweetened chocolate. Conversely, for the purposes of optimizing consumer acceptability, our data do not support the use of raw or lightly roasted cacao, such as 0 min at 24 °C, 11 min at 105 °C, or 55 min at 64 °C. Bitterness and astringency in chocolate can be reduced through optimizing roasting. Bitterness, sourness, and astringency are negatively correlated to consumer liking. Sweetness and cocoa intensity are correlated with increased liking of chocolate. Generally, more intense roasting conditions lead to more acceptable chocolate. Use of raw or lightly roasted cacao leads to less acceptable chocolate.
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Affiliation(s)
- Alan P. McClure
- Patric Chocolate, 6601 Stephens Station Rd, Ste 109, Columbia, MO, 65202, USA
| | - Helene Hopfer
- Department of Food Science, The Pennsylvania State University, University Park, PA, 16802, USA
- Corresponding author. Department of Food Science, The Pennsylvania State University, 218 Rodney A. Erickson Food Science Building University Park, PA, 16802, USA.
| | - Ingolf U. Grün
- Department of Food Science, University of Missouri, Columbia, MO, 65211, USA
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McClure AP, Spinka CM, Grün IU. Quantitative analysis and response surface modeling of important bitter compounds in chocolate made from cocoa beans with eight roast profiles across three origins. J Food Sci 2021; 86:4901-4913. [PMID: 34636050 DOI: 10.1111/1750-3841.15924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 08/30/2021] [Accepted: 09/02/2021] [Indexed: 11/27/2022]
Abstract
Eight different roast profiles for each of the three origins of cacao were prepared and made into unsweetened chocolate based upon an I-Optimal response-surface design for minimizing prediction variance. Quantitative chemical analysis of all chocolate treatments was performed with HPLC-DAD on six important bitter compounds (i.e., theobromine, caffeine, epicatechin, catechin, procyanidin B2, and cyclo(Proline-Valine)). Least-squares linear modeling was then performed. Using derived linear models, response-surface contour plots were produced to show predicted changes in the six bitter compounds over the entire experimental region. Significant and large decreases in concentration of epicatechin and procyanidin B2 were observed as roasting progressed, whereas for catechin and cyclo(Proline-Valine), significant increases were observed. Small yet significant theobromine and caffeine concentration increases were also observed with roasting, likely due to moisture loss. Some significant differences were also found between the cacao origins for all bitter compound concentrations except for cyclo(Proline-Valine), suggesting the importance of a survey encompassing a greater number of cacao origins in the future to obtain a more complete picture of the variation in bitter compounds in cacao due to origin. PRACTICAL APPLICATION: This research describes how roasting can be used to alter the concentration of bitter and sometimes astringent chemicals for several origins of cacao, which may be used to improve the sensory characteristics of dark chocolate.
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Liu X, Le Bourvellec C, Guyot S, Renard CMGC. Reactivity of flavanols: Their fate in physical food processing and recent advances in their analysis by depolymerization. Compr Rev Food Sci Food Saf 2021; 20:4841-4880. [PMID: 34288366 DOI: 10.1111/1541-4337.12797] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 05/22/2021] [Accepted: 06/10/2021] [Indexed: 12/15/2022]
Abstract
Flavanols, a subgroup of polyphenols, are secondary metabolites with antioxidant properties naturally produced in various plants (e.g., green tea, cocoa, grapes, and apples); they are a major polyphenol class in human foods and beverages, and have recognized effect on maintaining human health. Therefore, it is necessary to evaluate their changes (i.e., oxidation, polymerization, degradation, and epimerization) during various physical processing (i.e., heating, drying, mechanical shearing, high-pressure, ultrasound, and radiation) to improve the nutritional value of food products. However, the roles of flavanols, in particular for their polymerized forms, are often underestimated, for a large part because of analytical challenges: they are difficult to extract quantitatively, and their quantification demands chemical reactions. This review examines the existing data on the effects of different physical processing techniques on the content of flavanols and highlights the changes in epimerization and degree of polymerization, as well as some of the latest acidolysis methods for proanthocyanidin characterization and quantification. More and more evidence show that physical processing can affect content but also modify the structure of flavanols by promoting a series of internal reactions. The most important reactivity of flavanols in processing includes oxidative coupling and rearrangements, chain cleavage, structural rearrangements (e.g., polymerization, degradation, and epimerization), and addition to other macromolecules, that is, proteins and polysaccharides. Some acidolysis methods for the analysis of polymeric proanthocyanidins have been updated, which has contributed to complete analysis of proanthocyanidin structures in particular regarding their proportion of A-type proanthocyanidins and their degree of polymerization in various plants. However, future research is also needed to better extract and characterize high-polymer proanthocyanidins, whether in their native or modified forms.
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Affiliation(s)
- Xuwei Liu
- INRAE, Avignon University, UMR408 SQPOV, Avignon, France
| | | | - Sylvain Guyot
- INRAE, UR1268 BIA, Team Polyphenol, Reactivity & Processing (PRP), Le Rheu, France
| | - Catherine M G C Renard
- INRAE, Avignon University, UMR408 SQPOV, Avignon, France.,INRAE, TRANSFORM, Nantes, France
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Urbańska B, Kowalska H, Szulc K, Ziarno M, Pochitskaya I, Kowalska J. Comparison of the Effects of Conching Parameters on the Contents of Three Dominant Flavan3-ols, Rheological Properties and Sensory Quality in Chocolate Milk Mass Based on Liquor from Unroasted Cocoa Beans. Molecules 2021; 26:molecules26092502. [PMID: 33922933 PMCID: PMC8123309 DOI: 10.3390/molecules26092502] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/15/2021] [Accepted: 04/22/2021] [Indexed: 02/06/2023] Open
Abstract
The content of polyphenols in chocolate depends on many factors related to the properties of raw material and manufacturing parameters. The trend toward developing chocolates made from unroasted cocoa beans encourages research in this area. In addition, modern customers attach great importance to how the food they consume benefits their bodies. One such benefit that consumers value is the preservation of natural antioxidant compounds in food products (e.g., polyphenols). Therefore, in our study we attempted to determine the relationship between variable parameters at the conching stage (i.e., temperature and time of) and the content of dominant polyphenols (i.e.,catechins, epicatechins, and procyanidin B2) in chocolate milk mass (CMM) obtained from unroasted cocoa beans. Increasing the conching temperature from 50 to 60 °C decreased the content of three basic flavan-3-ols. The highest number of these compounds was determined when the process was carried out at 50 °C. However, the time that caused the least degradation of these compounds differed. For catechin, it was 2 h; for epicatechin it was 1 h; and for procyanidin it was 3 h. The influence of both the temperature and conching time on the rheological properties of chocolate milk mass was demonstrated. At 50 °C, the viscosity and the yield stress of the conched mass showed its highest value.
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Affiliation(s)
- Bogumiła Urbańska
- Department of Technology and Food Evaluation, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska St., 02-776 Warsaw, Poland; (M.Z.); (J.K.)
- Correspondence:
| | - Hanna Kowalska
- Department of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska St., 02-776 Warsaw, Poland; (H.K.); (K.S.)
| | - Karolina Szulc
- Department of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska St., 02-776 Warsaw, Poland; (H.K.); (K.S.)
| | - Małgorzata Ziarno
- Department of Technology and Food Evaluation, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska St., 02-776 Warsaw, Poland; (M.Z.); (J.K.)
| | - Irina Pochitskaya
- The Scientific and Practical Centre for Foodstuffs of the National Academy of Sciences of Belarus, 29. Kozlova St., 220037 Minsk, Belarus;
| | - Jolanta Kowalska
- Department of Technology and Food Evaluation, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska St., 02-776 Warsaw, Poland; (M.Z.); (J.K.)
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16
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Birsan RI, Wilde P, Waldron KW, Rai DK. Anticholinesterase Activities of Different Solvent Extracts of Brewer's Spent Grain. Foods 2021; 10:foods10050930. [PMID: 33922726 PMCID: PMC8145039 DOI: 10.3390/foods10050930] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/20/2021] [Accepted: 04/20/2021] [Indexed: 01/17/2023] Open
Abstract
Cholinesterases, involved in acetylcholine catabolism in the central and peripheral nervous system, have been strongly linked with neurodegenerative diseases. Current therapeutic approaches using synthetic drugs present several side effects. Hence, there is an increasing research interest in naturally-occurring dietary polyphenols, which are also considered efficacious. Food processing by-products such as brewer’s spent grain (BSG) would be a potential bio-source of polyphenols. In this study, polyphenol-rich BSG extracts using 60% acetone and 0.75% NaOH solutions were generated, which were further subjected to liquid–liquid partitioning using various organic solvents. The water-partitioned fractions of the saponified extracts had the highest total polyphenol content (6.2 ± 2.8 mgGAE/g dw) as determined by Folin–Ciocalteu reagent, while the LC-MS/MS showed ethyl acetate fraction with the highest phenolics (2.9 ± 0.3 mg/g BSG dw). The best inhibitions of acetyl- (37.9 ± 2.9%) and butyryl- (53.6 ± 7.7%) cholinesterases were shown by the diethyl ether fraction of the saponified extract. This fraction contained the highest sum of quantified phenolics (99 ± 21.2 µg/mg of extract), and with significant (p < 0.01) inhibitory contribution of decarboxylated-diferulic acid. Amongst the standards, caffeic acid presented the highest inhibition for both cholinesterases, 25.5 ± 0.2% for acetyl- and 52.3 ± 0.8% for butyryl-cholinesterase, respectively, whilst the blends insignificantly inhibited both cholinesterases. The results showed that polyphenol-rich BSG fractions have potentials as natural anti-cholinesterase agents.
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Affiliation(s)
- Rares I. Birsan
- Department of Food BioSciences, Teagasc Food Research Centre Ashtown, D15KN3K Dublin, Ireland;
- Food Innovation and Health Programme, Quadram Institute Bioscience, Norwich Research Park, Colney NR4 7UQ, UK;
| | - Peter Wilde
- Food Innovation and Health Programme, Quadram Institute Bioscience, Norwich Research Park, Colney NR4 7UQ, UK;
| | - Keith W. Waldron
- Anglia Science Writing Ltd., Wramplingham, Norfolk NR18 0RU, UK;
| | - Dilip K. Rai
- Department of Food BioSciences, Teagasc Food Research Centre Ashtown, D15KN3K Dublin, Ireland;
- Correspondence: ; Tel.: +353-018-059-500
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Asiedu-Gyekye IJ, Borovskaya TG, Poluektova ME, Vychuzhanina АV, Shchemerovа YА, Kamalova SI, Grgoreva VA, Amoateng P, Kukuia KE, Kwapong AA, Allotey Babington L, Amponsah SK, N'guessan BB. Reproductive Toxicity of Theobroma cacao: Increase in Survival Index, Nongenotoxic, and Proimplantation Potential. J Toxicol 2021; 2021:6114672. [PMID: 33519930 PMCID: PMC7817302 DOI: 10.1155/2021/6114672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 09/06/2020] [Accepted: 12/05/2020] [Indexed: 02/05/2023] Open
Abstract
Unsweetened natural cocoa (UNCP) was evaluated for reproductive toxicity in rats. A preliminary genotoxic potential was evaluated by the DNA comet assay test using C57Bl/6 mice. Both therapeutic dose (TD; 900 mg/kg) and high dose (HD; 9000 mg/kg) of UNCP were used. White Wistar rats were used in two experimental groups. The females received UNCP 15 days before crossing with untreated males. The males received UNCP for 48 days before mating with untreated females. Subacute toxicity was observed during a 14-day oral administration of UNCP. Results show that a high tail DNA% was observed with methyl mesylate administration in all tissues analysed. The lowest tail DNA% value was observed in the liver (1.64 ± 0.26) and kidney (1.63 ± 0.30) during UNCP (TD) administration. UNCP did not induce observable physical congenital malformations on the pubs of treated female and male rats, lacks genotoxic potential, and did not adversely affect pregnancy index, pub weights, and survival index, but UNCP exhibited proimplantation potential (p > 0.05).
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Affiliation(s)
- I. J. Asiedu-Gyekye
- 1Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon, Accra, Ghana
| | - T. G. Borovskaya
- 2Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
- 3National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russia
| | - M. E. Poluektova
- 2Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
- 3National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russia
| | - А. V. Vychuzhanina
- 2Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
- 3National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russia
| | - Y. А. Shchemerovа
- 2Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
- 3National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russia
| | - S. I. Kamalova
- 2Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
- 3National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russia
| | - V. A. Grgoreva
- 2Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
- 3National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russia
| | - P. Amoateng
- 1Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon, Accra, Ghana
| | - K. E. Kukuia
- 1Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon, Accra, Ghana
| | - A. A. Kwapong
- 4Department of Pharmaceutics and Microbiology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon, Accra, Ghana
| | - L. Allotey Babington
- 4Department of Pharmaceutics and Microbiology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon, Accra, Ghana
| | - S. K. Amponsah
- 1Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon, Accra, Ghana
| | - B. B. N'guessan
- 1Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon, Accra, Ghana
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18
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Fan J, Li TJ, Zhao XH. Barrier-promoting efficiency of two bioactive flavonols quercetin and myricetin on rat intestinal epithelial (IEC-6) cells via suppressing Rho activation. RSC Adv 2020; 10:27249-27258. [PMID: 35516969 PMCID: PMC9055572 DOI: 10.1039/d0ra04162a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 07/15/2020] [Indexed: 01/13/2023] Open
Abstract
Polyphenols are beneficial to human health because of their bio-activities. In this study, two flavonols quercetin and myricetin with or without heat treatment at 100 °C for 30 min were assessed for their barrier-promoting efficiency in rat intestinal epithelial (IEC-6) cells. The results indicated that the heated and unheated flavonols at dose levels of 2.5–20 μmol L−1 had a nontoxic effect on the cells treated for 24 and 48 h but enhanced the values of cell viability larger than 100% (especially at a dose level of 5 μmol L−1). Moreover, the cells exposed to these flavonols of 5 μmol L−1 for 24 and 48 h had improved barrier integrity compared to the control cells without any flavonol treatment, reflected by enhanced transepithelial electrical resistance and anti-bacterial effect but decreased paracellular permeability and bacterial translocation. Moreover, the results from both mRNA and protein expression verified 1.1–3.4 fold up-regulation of zonula occludens-1, occludin, and claudin-1 that are critical to tight junctions and barrier function of cells. Furthermore, the expression of other two proteins RhoA and ROCK in the treated cells was also down-regulated, demonstrating suppressed Rho activation and consequently barrier promotion via the RhoA/ROCK signaling pathway. Overall quercetin, due to its lower molecular polarity, mostly gave higher barrier-promoting efficiency than myricetin, while the heated flavonols were always less efficient than the unheated counterparts to promote barrier integrity of IEC-6 cells. It is thus highlighted that flavonols can provide barrier-promoting effects on intestinal epithelial cells with a promoting efficiency dependent on flavonol polarity; however, heat treatment especially excessive heat treatment of plant foods might lead to damaged flavonol activity. Quercetin and myricetin have a barrier-promoting effect on IEC-6 cells via the RhoA/ROCK pathway but heated quercetin and myricetin show decreased barrier-promoting efficiency.![]()
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Affiliation(s)
- Jing Fan
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University 150030 Harbin PR China
| | - Tie-Jing Li
- College of Light Industry, Liaoning University 110136 Shenyang PR China
| | - Xin-Huai Zhao
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University 150030 Harbin PR China .,School of Biology and Food Engineering, Guangdong University of Petrochemical Technology 525000 Maoming PR China
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19
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Cremonini E, Iglesias DE, Kang J, Lombardo GE, Mostofinejad Z, Wang Z, Zhu W, Oteiza PI. (-)-Epicatechin and the comorbidities of obesity. Arch Biochem Biophys 2020; 690:108505. [PMID: 32679195 DOI: 10.1016/j.abb.2020.108505] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/08/2020] [Accepted: 07/10/2020] [Indexed: 02/07/2023]
Abstract
Obesity has major adverse consequences on human health contributing to the development of, among others, insulin resistance and type 2 diabetes, cardiovascular disease, non-alcoholic fatty liver disease, altered behavior and cognition, and cancer. Changes in dietary habits and lifestyle could contribute to mitigate the development and/or progression of these pathologies. This review will discuss current evidence on the beneficial actions of the flavan-3-ol (-)-epicatechin (EC) on obesity-associated comorbidities. These benefits can be in part explained through EC's capacity to mitigate several common events underlying the development of these pathologies, including: i) high circulating levels of glucose, lipids and endotoxins; ii) chronic systemic inflammation; iii) tissue endoplasmic reticulum and oxidative stress; iv) insulin resistance; v) mitochondria dysfunction and vi) dysbiosis. The currently known underlying mechanisms and cellular targets of EC's beneficial effects are discussed. While, there is limited evidence from human studies supplementing with pure EC, other studies involving cocoa supplementation in humans, pure EC in rodents and in vitro studies, support a potential beneficial action of EC on obesity-associated comorbidities. This evidence also stresses the need of further research in the field, which would contribute to the development of human dietary strategies to mitigate the adverse consequences of obesity.
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Affiliation(s)
- Eleonora Cremonini
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA
| | - Dario E Iglesias
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA
| | - Jiye Kang
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA
| | - Giovanni E Lombardo
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA; Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Zahra Mostofinejad
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA
| | - Ziwei Wang
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA
| | - Wei Zhu
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA
| | - Patricia I Oteiza
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA.
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20
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Study of Polyphenol Content and Antioxidant Properties of Various Mix of Chocolate Milk Masses with Different Protein Content. Antioxidants (Basel) 2020; 9:antiox9040299. [PMID: 32260255 PMCID: PMC7222213 DOI: 10.3390/antiox9040299] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/01/2020] [Accepted: 04/01/2020] [Indexed: 12/15/2022] Open
Abstract
The aim of the study was to analyze the antioxidant character of conched chocolate milk masses, taking into account different protein content in milk. For the study, cocoa liquor obtained from roasted and unroasted cocoa beans from different regions, as well as milk powder obtained by spray and cylindrical drying were used. The analysis that was carried out showed that the protein content of powdered milk products ranged from about 11.6% (w/w) to over 31% (w/w). Lower content of polyphenols and lower antioxidant activity were shown in the masses to which the addition of milk with higher protein content was applied. The analysis of antioxidant character of chocolate milk masses showed higher total polyphenols content in masses prepared from unroasted cocoa beans liquor.
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21
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Feng L, Liu P, Zheng P, Zhang L, Zhou J, Gong Z, Yu Y, Gao S, Zheng L, Wang X, Wan X. Chemical profile changes during pile fermentation of Qingzhuan tea affect inhibition of α-amylase and lipase. Sci Rep 2020; 10:3489. [PMID: 32103067 PMCID: PMC7044205 DOI: 10.1038/s41598-020-60265-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 02/06/2020] [Indexed: 02/06/2023] Open
Abstract
Qingzhuan tea (QZT), a post-fermented tea, has been reported to have anti-obesity and anti-hyperglycemic effects, perhaps due to bioactive compounds that inhibit lipase and α-amylase. It is unknown what chemical constituents’ changes and what bioactive compounds occur during the manufacture of QZT. The aim of this study was to determine the secondary metabolites changes that occur during post-fermentation and how these changes affect the ability of QZT to inhibit the activities of lipase and α-amylase. During the processing steps, metabolites levels and their inhibitory effects on lipase and α-amylase were assessed. Changes in content and activities suggested that the first turn over or the second turn over was critical for the formation and conversion of bioactive compounds responsible for the anti-obesity and hypoglycemic effects. The relationship between constituents and activities was further evaluated by correlation analysis, which showed that amino acids and flavonoids might be responsible for the anti-obesity and anti-hyperglycemic effects of QZT. This study clarified that compounds were altered during pile fermentation of QZT and tentatively identified the bioactive compounds formed during QZT manufacture.
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Affiliation(s)
- Lin Feng
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, 430064, Wuhan, China.,State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, 230036, Hefei, China
| | - Panpan Liu
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, 430064, Wuhan, China
| | - Pengcheng Zheng
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, 430064, Wuhan, China
| | - Liang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, 230036, Hefei, China
| | - Jie Zhou
- College of Horticulture, Northwest A&F University, 712100, Yangling, Shanxi, China
| | - Ziming Gong
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, 430064, Wuhan, China.
| | - Yongchao Yu
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, 230036, Hefei, China
| | - Shiwei Gao
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, 430064, Wuhan, China
| | - Lin Zheng
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, 430064, Wuhan, China
| | - Xueping Wang
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, 430064, Wuhan, China
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, 230036, Hefei, China.
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22
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The Kinetics of Total Phenolic Content and Monomeric Flavan-3-ols during the Roasting Process of Criollo Cocoa. Antioxidants (Basel) 2020; 9:antiox9020146. [PMID: 32050504 PMCID: PMC7070796 DOI: 10.3390/antiox9020146] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/15/2020] [Accepted: 01/15/2020] [Indexed: 12/25/2022] Open
Abstract
Cocoa beans are the main raw material for the manufacture of chocolate and are currently gaining great importance due to their antioxidant potential attributed to the total phenolic content (TPC) and the monomeric flavan-3-ols (epicatechin and catechin). The objective of this study was to determine the degradation kinetics parameters of TPC, epicatechin, and catechin during the roasting process of Criollo cocoa for 10, 20, 30, 40, and 50 min at 90, 110, 130, 150, 170, 190, and 200 °C. The results showed a lower degradation of TPC (10.98 ± 6.04%) and epicatechin (8.05 ± 3.01%) at 130 °C and 10 min of roasting, while a total degradation of epicatechin and a 92.29 ± 0.06% degradation of TPC was obtained at 200 °C and 50 min. Reaction rate constant (k) and activation energy (Ea) were 0.02–0.10 min−1 and 24.03 J/mol for TPC and 0.02–0.13 min−1 and 22.51 J/mol for epicatechin, respectively. Degradation kinetics of TPC and epicatechin showed first-order reactions, while the catechin showed patterns of formation and degradation.
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23
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Barišić V, Kopjar M, Jozinović A, Flanjak I, Ačkar Đ, Miličević B, Šubarić D, Jokić S, Babić J. The Chemistry behind Chocolate Production. Molecules 2019; 24:E3163. [PMID: 31480281 PMCID: PMC6749277 DOI: 10.3390/molecules24173163] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/28/2019] [Accepted: 08/29/2019] [Indexed: 12/19/2022] Open
Abstract
Chocolate production is a complex process during which numerous chemical reactions occur. The most important processes, involving most of the reactions important for development of the proper chocolate flavor, are fermentation, drying and roasting of cocoa bean, and chocolate conching. During fermentation, formation of important precursors occurs, which are essential for further chemical reactions in the following processes of chocolate production. Roasting is one of the most important processes due to the occurrence of Maillard's reactions, during which aroma compounds are formed. In this paper, we have reviewed the most important chemical reactions that occur with proteins, carbohydrates, lipids, and polyphenols. Additionally, we present other components that may be naturally present or form during the production process, such as methylxanthines, aldehydes, esters, ketones, pyrazines, acids, and alcohols.
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Affiliation(s)
- Veronika Barišić
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, Franje Kuhača 20, 31000 Osijek, Croatia
| | - Mirela Kopjar
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, Franje Kuhača 20, 31000 Osijek, Croatia
| | - Antun Jozinović
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, Franje Kuhača 20, 31000 Osijek, Croatia
| | - Ivana Flanjak
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, Franje Kuhača 20, 31000 Osijek, Croatia
| | - Đurđica Ačkar
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, Franje Kuhača 20, 31000 Osijek, Croatia.
| | - Borislav Miličević
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, Franje Kuhača 20, 31000 Osijek, Croatia
| | - Drago Šubarić
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, Franje Kuhača 20, 31000 Osijek, Croatia
| | - Stela Jokić
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, Franje Kuhača 20, 31000 Osijek, Croatia
| | - Jurislav Babić
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, Franje Kuhača 20, 31000 Osijek, Croatia
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24
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Changes in the composition and content of polyphenols in chocolate resulting from pre-treatment method of cocoa beans and technological process. Eur Food Res Technol 2019. [DOI: 10.1007/s00217-019-03333-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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25
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Irondi EA, Adegoke BM, Effion ES, Oyewo SO, Alamu EO, Boligon AA. Enzymes inhibitory property, antioxidant activity and phenolics profile of raw and roasted red sorghum grains in vitro. FOOD SCIENCE AND HUMAN WELLNESS 2019. [DOI: 10.1016/j.fshw.2019.03.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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26
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Irondi EA, Ogunsanmi AO, Ahmad RS, Ajani EO, Adegoke BM, Boligon AA. Effect of roasting on phenolics composition, enzymes inhibitory and antioxidant properties of cowpea pulses. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2019. [DOI: 10.1007/s11694-019-00064-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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