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Hamad G, El-Makarem H, Elaziz AA, Amer A, El-Nogoumy B, Abou-Alella S. Adsorption efficiency of sodium & calcium bentonite for ochratoxin A in some Egyptian cheeses: an innovative fortification model, in vitro and in vivo experiments. WORLD MYCOTOXIN J 2022. [DOI: 10.3920/wmj2021.2682] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The incidence of the mycotoxin ochratoxin A (OTA) in cheeses constitutes a significant economic and health concern for producers and consumers alike. Recently, detoxification approaches using food additives to counteract mycotoxins have been widely recommended in the food industry. This study aimed to quantify OTA levels in some Egyptian cheese types, and experimentally determine the detoxification effect of bentonite both in vitro and in vivo. The examined Roomy and Karish cheese showed higher OTA levels (4.138 and 3.399 μg/kg, respectively) than other cheeses. Calcium bentonite presented higher adsorption efficiency than sodium bentonite at all concentrations, both in phosphate buffered saline (PBS) and feta cheese, and at the whole pH range. Calcium bentonite concentrations (60 and 100 mg/ml) had much higher sequestering activity on OTA both in PBS and feta cheese, while the adsorption efficiency was higher at pH 6.8 than at pH 3. All enzymatic activities were near the control levels in rats treated both with OTA and bentonite compared with rats treated with OTA alone. The IC50 of calcium bentonite was 107.75 μg/ml, which was less cytotoxic than sodium bentonite (52.96 μg/ml). Bentonites were categorised by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) as excellent binders of OTA. The innovative calcium bentonite-fortified feta cheese showed the most superior sensorial properties; hence it can be predicted as a novel food-grade adsorbent for OTA sequestration.
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Affiliation(s)
- G.M. Hamad
- Department of Food Technology, Arid Land Cultivation Research Institute, City of Scientific Research and Technological Applications, New Borg El-Arab City, Alexandria 21934, Egypt
| | - H.A. El-Makarem
- Department of Food Hygiene and Control, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - A.I. Abd Elaziz
- Department of Pharmacology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - A.A. Amer
- Department of Food Hygiene and Control, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - B.A. El-Nogoumy
- Department of Botany and Microbiology, Faculty of Science, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - S.A. Abou-Alella
- Department of Food Hygiene and Control, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
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Carter B, Cheng N, Kapoor R, Meletharayil G, Drake M. Invited review: Microfiltration-derived casein and whey proteins from milk. J Dairy Sci 2021; 104:2465-2479. [DOI: 10.3168/jds.2020-18811] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 10/05/2020] [Indexed: 01/26/2023]
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Carter B, Drake M. Invited review: The effects of processing parameters on the flavor of whey protein ingredients. J Dairy Sci 2018; 101:6691-6702. [DOI: 10.3168/jds.2018-14571] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 04/18/2018] [Indexed: 11/19/2022]
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4
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Stout M, Park C, Drake M. The effect of bleaching agents on the degradation of vitamins and carotenoids in spray-dried whey protein concentrate. J Dairy Sci 2017; 100:7922-7932. [DOI: 10.3168/jds.2017-12929] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 06/02/2017] [Indexed: 11/19/2022]
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Park CW, Parker M, Drake M. Short communication: The effect of liquid storage on the flavor of whey protein concentrate. J Dairy Sci 2016; 99:4303-4308. [DOI: 10.3168/jds.2016-10946] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 02/24/2016] [Indexed: 11/19/2022]
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Smith TJ, Foegeding EA, Drake MA. Flavor and Functional Characteristics of Whey Protein Isolates from Different Whey Sources. J Food Sci 2016; 81:C849-57. [PMID: 26910294 DOI: 10.1111/1750-3841.13248] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 01/20/2016] [Indexed: 11/28/2022]
Abstract
This study evaluated flavor and functional characteristics of whey protein isolates (WPIs) from Cheddar, Mozzarella, Cottage cheese, and rennet casein whey. WPIs were manufactured in triplicate. Powders were rehydrated and evaluated in duplicate by descriptive sensory analysis. Volatile compounds were extracted by solid-phase microextraction followed by gas chromatography-mass spectrometry. Functional properties were evaluated by measurement of foam stability, heat stability, and protein solubility. WPI from Cheddar and Cottage cheese whey had the highest cardboard flavor, whereas sweet aromatic flavor was highest in Mozzarella WPI, and rennet casein WPI had the lowest overall flavor and aroma. Distinct sour taste and brothy/potato flavor were also noted in WPI from Cottage cheese whey. Consistent with sensory results, aldehyde concentrations were also highest in Cheddar and Cottage cheese WPI. Overrun, yield stress, and foam stability were not different (P > 0.05) among Cheddar, Mozzarella, and rennet casein WPI, but WPI foams from Cottage cheese whey had a lower overrun and air-phase fraction (P < 0.05). Cottage cheese WPI was more heat stable at pH 7 (P < 0.05) than other WPI in 4% protein solutions, and was the only WPI to not gel at 10% protein. Cottage cheese WPI was less soluble at pH 4.6 compared to other WPI (P < 0.05) and also exhibited higher turbidity loss at pH 3 to 7 compared to other WPI (P < 0.05). This study suggests that WPI produced from nontraditional whey sources could be used in new applications due to distinct functional and flavor characteristics.
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Affiliation(s)
- T J Smith
- Dept. of Food, Bioprocessing & Nutrition Sciences, Southeast Dairy Foods Research Center, North Carolina State Univ, Raleigh, NC, 27695, U.S.A
| | - E A Foegeding
- Dept. of Food, Bioprocessing & Nutrition Sciences, Southeast Dairy Foods Research Center, North Carolina State Univ, Raleigh, NC, 27695, U.S.A
| | - M A Drake
- Dept. of Food, Bioprocessing & Nutrition Sciences, Southeast Dairy Foods Research Center, North Carolina State Univ, Raleigh, NC, 27695, U.S.A
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Smith T, Gerard P, Drake M. Effect of temperature and concentration on benzoyl peroxide bleaching efficacy and benzoic acid levels in whey protein concentrate. J Dairy Sci 2015; 98:7614-27. [DOI: 10.3168/jds.2015-9890] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 07/23/2015] [Indexed: 11/19/2022]
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Smith TJ, Foegeding EA, Drake M. Sensory and Functionality Differences of Whey Protein Isolate Bleached by Hydrogen or Benzoyl Peroxide. J Food Sci 2015; 80:C2153-60. [DOI: 10.1111/1750-3841.13000] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Accepted: 07/20/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Tucker J. Smith
- Dept. of Food, Bioprocessing & Nutrition Sciences, Southeast Dairy Foods Research Center; North Carolina State Univ; Raleigh N.C. 27695 U.S.A
| | - E. Allen Foegeding
- Dept. of Food, Bioprocessing & Nutrition Sciences, Southeast Dairy Foods Research Center; North Carolina State Univ; Raleigh N.C. 27695 U.S.A
| | - MaryAnne Drake
- Dept. of Food, Bioprocessing & Nutrition Sciences, Southeast Dairy Foods Research Center; North Carolina State Univ; Raleigh N.C. 27695 U.S.A
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Park CW, Bastian E, Farkas B, Drake M. The effect of acidification of liquid whey protein concentrate on the flavor of spray-dried powder. J Dairy Sci 2014; 97:4043-51. [PMID: 24792804 DOI: 10.3168/jds.2013-7877] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Accepted: 03/14/2014] [Indexed: 11/19/2022]
Abstract
Off-flavors in whey protein negatively influence consumer acceptance of whey protein ingredient applications. Clear acidic beverages are a common application of whey protein, and recent studies have demonstrated that beverage processing steps, including acidification, enhance off-flavor production from whey protein. The objective of this study was to determine the effect of preacidification of liquid ultrafiltered whey protein concentrate (WPC) before spray drying on flavor of dried WPC. Two experiments were performed to achieve the objective. In both experiments, Cheddar cheese whey was manufactured, fat-separated, pasteurized, bleached (250 mg/kg of hydrogen peroxide), and ultrafiltered (UF) to obtain liquid WPC that was 13% solids (wt/wt) and 80% protein on a solids basis. In experiment 1, the liquid retentate was then acidified using a blend of phosphoric and citric acids to the following pH values: no acidification (control; pH 6.5), pH 5.5, or pH 3.5. The UF permeate was used to normalize the protein concentration of each treatment. The retentates were then spray dried. In experiment 2, 150 μg/kg of deuterated hexanal (D₁₂-hexanal) was added to each treatment, followed by acidification and spray drying. Both experiments were replicated 3 times. Flavor properties of the spray-dried WPC were evaluated by sensory and instrumental analyses in experiment 1 and by instrumental analysis in experiment 2. Preacidification to pH 3.5 resulted in decreased cardboard flavor and aroma intensities and an increase in soapy flavor, with decreased concentrations of hexanal, heptanal, nonanal, decanal, dimethyl disulfide, and dimethyl trisulfide compared with spray drying at pH 6.5 or 5.5. Adjustment to pH 5.5 before spray drying increased cabbage flavor and increased concentrations of nonanal at evaluation pH values of 3.5 and 5.5 and dimethyl trisulfide at all evaluation pH values. In general, the flavor effects of preacidification were consistent regardless of the pH to which the solutions were adjusted after spray drying. Preacidification to pH 3.5 increased recovery of D₁₂-hexanal in liquid WPC and decreased recovery of D₁₂-hexanal in the resulting powder when evaluated at pH 6.5 or 5.5. These results demonstrate that acidification of liquid WPC80 to pH 3.5 before spray drying decreases off-flavors in spray-dried WPC and suggest that the mechanism for off-flavor reduction is the decreased protein interactions with volatile compounds at low pH in liquid WPC or the increased interactions between protein and volatile compounds in the resulting powder.
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Affiliation(s)
- Curtis W Park
- Department of Food, Bioprocessing, and Nutrition Sciences, Southeast Dairy Foods Research Center, North Carolina State University, Raleigh 27695
| | | | - Brian Farkas
- Department of Food, Bioprocessing, and Nutrition Sciences, Southeast Dairy Foods Research Center, North Carolina State University, Raleigh 27695
| | - MaryAnne Drake
- Department of Food, Bioprocessing, and Nutrition Sciences, Southeast Dairy Foods Research Center, North Carolina State University, Raleigh 27695.
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Park C, Drake M. The Distribution of Fat in Dried Dairy Particles Determines Flavor Release and Flavor Stability. J Food Sci 2014; 79:R452-9. [DOI: 10.1111/1750-3841.12396] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 01/15/2014] [Indexed: 11/29/2022]
Affiliation(s)
- C.W. Park
- Dept. of Food; Bioprocessing and Nutrition Sciences; Southeast Dairy Foods Research Center; North Carolina State Univ.; Raleigh NC 27695 U.S.A
| | - M.A. Drake
- Dept. of Food; Bioprocessing and Nutrition Sciences; Southeast Dairy Foods Research Center; North Carolina State Univ.; Raleigh NC 27695 U.S.A
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12
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Campbell R, Boogers I, Drake M. Short communication: Development of a novel method for the extraction of norbixin from whey and its subsequent quantification via high performance liquid chromatography. J Dairy Sci 2014; 97:1313-8. [DOI: 10.3168/jds.2013-7415] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Accepted: 11/03/2013] [Indexed: 11/19/2022]
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Park CW, Bastian E, Farkas B, Drake M. The Effect of Feed Solids Concentration and Inlet Temperature on the Flavor of Spray Dried Whey Protein Concentrate. J Food Sci 2013; 79:C19-24. [DOI: 10.1111/1750-3841.12279] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Accepted: 09/12/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Curtis W. Park
- Dept. of Food, Bioprocessing, and Nutrition Sciences; Southeast Dairy Foods Research Center; North Carolina State Univ.; Raleigh NC 27695 U.S.A
| | | | - Brian Farkas
- Dept. of Food, Bioprocessing, and Nutrition Sciences; Southeast Dairy Foods Research Center; North Carolina State Univ.; Raleigh NC 27695 U.S.A
| | - MaryAnne Drake
- Dept. of Food, Bioprocessing, and Nutrition Sciences; Southeast Dairy Foods Research Center; North Carolina State Univ.; Raleigh NC 27695 U.S.A
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Campbell R, Drake M. Cold enzymatic bleaching of fluid whey. J Dairy Sci 2013; 96:7404-13. [DOI: 10.3168/jds.2013-6722] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Accepted: 09/03/2013] [Indexed: 11/19/2022]
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15
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Fox A, Smith T, Gerard P, Drake M. The Influence of Bleaching Agent and Temperature on Bleaching Efficacy and Volatile Components of Fluid Whey and Whey Retentate. J Food Sci 2013; 78:C1535-C1542. [DOI: 10.1111/1750-3841.12251] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Accepted: 07/26/2013] [Indexed: 11/26/2022]
Affiliation(s)
- A.J. Fox
- Dept. of Food, Bioprocessing and Nutrition Sciences; Southeast Dairy Foods Research Center; North Carolina State Univ.; Raleigh NC 27695 U.S.A
| | - T.J. Smith
- Dept. of Food, Bioprocessing and Nutrition Sciences; Southeast Dairy Foods Research Center; North Carolina State Univ.; Raleigh NC 27695 U.S.A
| | - P.D. Gerard
- Dept. of Mathematical Science; Clemson Univ.; Clemson SC 29634 U.S.A
| | - M.A. Drake
- Dept. of Food, Bioprocessing and Nutrition Sciences; Southeast Dairy Foods Research Center; North Carolina State Univ.; Raleigh NC 27695 U.S.A
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Nongonierma AB, Abrlova M, Kilcawley KN. Encapsulation of a Lactic Acid Bacteria Cell-Free Extract in Liposomes and Use in Cheddar Cheese Ripening. Foods 2013; 2:100-119. [PMID: 28239101 PMCID: PMC5302231 DOI: 10.3390/foods2010100] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2013] [Revised: 03/05/2013] [Accepted: 03/06/2013] [Indexed: 11/16/2022] Open
Abstract
A concentrated form of cell free extract (CFE) derived from attenuated Lactococcus lactis supsb. lactis 303 CFE was encapsulated in liposomes prepared from two different proliposome preparations (Prolipo Duo and Prolipo S) using microfluidization. Entrapment efficiencies of 19.7 % (Prolipo S) and 14.0 % (Prolipo Duo) were achieved and the preparations mixed in the ratio 4 (Prolipo Duo):1 (Prolipo S). Cheddar cheese trials were undertaken evaluating the performance of CFE entrapped in liposomes, empty liposomes and free CFE in comparison to a control cheese without any CFE or liposomes. Identical volumes of liposome and amounts of CFE were used in triplicate trials. The inclusion of liposomes did not adversely impact on cheese composition water activity, or microbiology. Entrapment of CFE in liposomes reduced loss of CFE to the whey. No significant differences were evident in proteolysis or expressed PepX activity during ripening in comparison to the cheeses containing free CFE, empty liposomes or the control, as the liposomes did not degrade during ripening. This result highlights the potential of liposomes to minimize losses of encapsulated enzymes into the whey during cheese production but also highlights the need to optimize the hydrophobicity, zeta potential, size and composition of the liposomes to maximize their use as vectors for enzyme addition in cheese to augment ripening.
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Affiliation(s)
| | - Magdalena Abrlova
- Teagasc, Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland.
- Department of Dairy and Fat Technology, Institute of Chemical Technology, Prague Technika5, Prague 6, 16628, Czech Republic.
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