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Pérez NV, Ramírez-Sotelo G, Yáñez-Fernández J, Castro-Rodríguez DC. Role of Thermal Process on the Physicochemical and Rheological Properties and Antioxidant Capacity of a New Functional Beverage Based on Coconut Water and Rice Flour. ACS OMEGA 2023; 8:26938-26947. [PMID: 37546632 PMCID: PMC10398844 DOI: 10.1021/acsomega.3c01761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 07/03/2023] [Indexed: 08/08/2023]
Abstract
Different substrates have been implemented for the production of functional beverages. To avoid the presence of pathogens, beverages have been subjected to thermal treatments, such as sterilization or pasteurization, which can interfere with the physicochemical, rheological, functional, and organoleptic properties of the final product. The objective of the present study was to evaluate the effects of heat treatment on the physicochemical properties, such as acidity, pH, total solids, density, total and reducing sugar, as well as the antioxidant activity of a beverage formulated from rice flour (RF) and coconut water (CW). Three beverage formulations were evaluated: A (2% RF; 98% CW), B (5% RF; 95% CW), and C (8% RF; 92% CW), each of which was subjected to two heat treatments: sterilized (121 °C/15 psi/15 min) or pasteurized (60 °C/60 min and subsequently 73 °C/15 s). The heat treatments increased the acidity and reducing sugars but decreased pH, total sugar, and antioxidant activity. As for the rheological properties, the mixtures were pseudoplastic fluid. The physicochemical properties from RF and CW mixtures were dependent on the heat treatment, but these can be introduced as new nondairy substrates for the elaboration of functional beverages to be consumed mainly by those lactose intolerant.
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Affiliation(s)
- Naella
Sandivel Valencia Pérez
- Unidad
Profesional Interdisciplinaria de Biotecnología (UPIBI), Instituto Politécnico Nacional (IPN), Ciudad de Mexico 07738, Mexico
| | - Guadalupe Ramírez-Sotelo
- Unidad
Profesional Interdisciplinaria de Biotecnología (UPIBI), Instituto Politécnico Nacional (IPN), Ciudad de Mexico 07738, Mexico
| | - Jorge Yáñez-Fernández
- Unidad
Profesional Interdisciplinaria de Biotecnología (UPIBI), Instituto Politécnico Nacional (IPN), Ciudad de Mexico 07738, Mexico
| | - Diana C Castro-Rodríguez
- CONACyT-Cátedras,
Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición
SZ, Mexico City 14080, Mexico
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He J, Sirendalai, Chen Q, Yi L, Ming L, Ji R. Proteomics and microstructure profiling of Bactrian camel milk protein after homogenization. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Bragason E, Berhe T, Dashe D, Sørensen KI, Guya ME, Hansen EB. Antimicrobial activity of novel Lactococcus lactis strains against Salmonella Typhimurium DT12, Escherichia coli O157:H7 VT− and Klebsiella pneumoniae in raw and pasteurised camel milk. Int Dairy J 2020. [DOI: 10.1016/j.idairyj.2020.104832] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Yazgan NN, Genis HE, Bulat T, Topcu A, Durna S, Yetisemiyen A, Boyaci IH. Discrimination of milk species using Raman spectroscopy coupled with partial least squares discriminant analysis in raw and pasteurized milk. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:4756-4765. [PMID: 32458436 DOI: 10.1002/jsfa.10534] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 04/30/2020] [Accepted: 05/26/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Heat treatment is the most common practice for the microbiological safety of milk; hence, determination of the heat treatment of milk is essential. Also, mislabeling or adulteration of expensive milk samples, like ewe or goat milk, with cow's milk is a growing problem in the dairy market. Thus, the determination of the authenticity of milk samples has crucial importance for both producers and consumers. The aim of this study was to discriminate milk samples using Raman spectroscopy with partial least squares discriminant analysis (PLS-DA), first with regard to whether the milk was heat-treated or not, and second with regard to species (cow, goat, ewe, mixture (adulterated)) in both raw and pasteurized milk. RESULTS First, discrimination of milk samples as raw or pasteurized was achieved using PLS-DA. Both in calibration and prediction models, high sensitivity and specificity values were obtained for raw and pasteurized milk samples. Second, the proposed method also discriminated milk samples according to their species (cow, goat, ewe, and mixture) for both raw and pasteurized milk. In both calibration and prediction models, the sensitivity and specificity values were above 0.857 and 0.897 respectively. Also, the accuracy values were above 0.915. The results obtained denote satisfactory accurate classification of the samples. CONCLUSION The results suggest that Raman spectroscopy coupled with PLS-DA can be successfully used to discriminate milk samples according to heat treatment (raw/pasteurized) and their species within 20 s per sample. It was seen that Raman spectra provide valuable information to be used especially for discrimination of milk samples according to their origin. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Nazife N Yazgan
- Department of Food Engineering, Faculty of Engineering, Hacettepe University, Ankara, Turkey
| | - Huseyin E Genis
- Department of Food Engineering, Faculty of Engineering, Hacettepe University, Ankara, Turkey
| | - Tugba Bulat
- Department of Food Engineering, Faculty of Engineering, Hacettepe University, Ankara, Turkey
| | - Ali Topcu
- Department of Food Engineering, Faculty of Engineering, Hacettepe University, Ankara, Turkey
| | - Sahin Durna
- Department of Dairy Technology, Ankara University, Diskapi, Ankara, Turkey
- Atatürk Forestry Farm, Ankara, Turkey
| | - Atila Yetisemiyen
- Department of Dairy Technology, Ankara University, Diskapi, Ankara, Turkey
| | - Ismail H Boyaci
- Department of Food Engineering, Faculty of Engineering, Hacettepe University, Ankara, Turkey
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Xiong L, Li C, Boeren S, Vervoort J, Hettinga K. Effect of heat treatment on bacteriostatic activity and protein profile of bovine whey proteins. Food Res Int 2020; 127:108688. [DOI: 10.1016/j.foodres.2019.108688] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 09/13/2019] [Accepted: 09/16/2019] [Indexed: 02/03/2023]
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Fechner K, Dreymann N, Schimkowiak S, Czerny CP, Teitzel J. Efficacy of dairy on-farm high-temperature, short-time pasteurization of milk on the viability of Mycobacterium avium ssp. paratuberculosis. J Dairy Sci 2019; 102:11280-11290. [PMID: 31563303 DOI: 10.3168/jds.2019-16590] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 08/15/2019] [Indexed: 02/03/2023]
Abstract
Feeding pasteurized milk to suckling calves is a popular practice used increasingly on dairy farms. Waste milk is frequently fed to calves because of its high nutritional value and economic benefits compared to milk replacement products. However, one of the disadvantages of feeding waste milk is the potential for exposure to a high number of bacterial contaminants, which may lead to serious illnesses or infections in calves. One of these contaminants is Mycobacterium avium ssp. paratuberculosis (MAP), the causative agent of Johne's disease (paratuberculosis). The transmission and distribution of paratuberculosis in dairy herds occurs mostly through the feeding newborn calves with contaminated colostrum or milk, because this age group is believed to be most susceptible to infection. To reduce the risk of transmission of pathogens, on-farm pasteurization of milk has become increasingly popular. In this study, we analyzed the efficacy of a new commercial high-temperature, short-time pasteurizer (73.5°C for 20 to 25 s) in terms of MAP inactivation under experimental on-farm conditions. The pasteurizer uses a newly developed steam-heating technique, allowing for the pasteurization of the transition milk without clumping. In 3 independent trials, we spiked fresh raw milk samples to a level of 107 or 104 viable MAP cells/mL before pasteurization. We examined the thermal inactivation and viability of MAP using culture and a D29 bacteriophage-based assay. To verify the identity and number of MAP cells, we also performed PCR assays. Pasteurization of the inoculated milk (107 and 104 MAP cells/mL) resulted in a remarkable reduction in viable MAP cells. The mean inactivation rate of MAP ranged from 0.82 to 2.65 log10 plaque-forming units/mL, depending on the initial MAP amount inoculated and the addition of conservative agents to the pasteurized milk. Nevertheless, approximately 103 MAP cells/mL remained viable and could be transferred to calves after high-temperature, short-time pasteurization of milk.
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Affiliation(s)
- Kim Fechner
- Division of Microbiology and Animal Hygiene, Department of Animal Sciences, Faculty of Agricultural Sciences, University of Göttingen, 37077 Germany
| | - Nico Dreymann
- Division of Microbiology and Animal Hygiene, Department of Animal Sciences, Faculty of Agricultural Sciences, University of Göttingen, 37077 Germany
| | - Sebastian Schimkowiak
- Division of Microbiology and Animal Hygiene, Department of Animal Sciences, Faculty of Agricultural Sciences, University of Göttingen, 37077 Germany
| | - Claus-Peter Czerny
- Division of Microbiology and Animal Hygiene, Department of Animal Sciences, Faculty of Agricultural Sciences, University of Göttingen, 37077 Germany
| | - Jenny Teitzel
- Division of Microbiology and Animal Hygiene, Department of Animal Sciences, Faculty of Agricultural Sciences, University of Göttingen, 37077 Germany.
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Radio Frequency Heating of Milk–Effects on Quality, Safety, and Shelf Life Assessed Using Artificial Senses and Chemometric Tools. ELECTRONICS 2018. [DOI: 10.3390/electronics7120402] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Thermal treatments are widely-used strategies in the food industry to inactivate microorganisms and enzymes in order to guarantee safe products without the need for preservatives, while still prolonging their shelf life. Commercial sterilization usually relies on pressurized hot water or steam, often leading to long process times and to surface dehydration phenomena and overheating. However, from the recent studies in the field of radio frequency heating, it has emerged that food products can be processed with time-temperature regimes that are much milder than those required with conventional techniques, resulting in minimal modification of the sensory and nutritive attributes of the food product itself. In the present work, raw bovine milk was sterilized through a combination of steam and radio frequencies, at various temperatures. Alongside the chemical composition, the pH, acidity, and total mesophilic count have been evaluated before and after the process and at the different exit temperatures, in order to study the impact of this technique on milk quality and safety aspects, during a storage period of 55 days at +4°C. Moreover, the organoleptic properties of milk have been studied using artificial senses coupled with chemometrics. Different temperatures lead to homogenous physicochemical and microbiological results, which conform to those expected for a good quality bovine milk. The assessment of flavor and appearance revealed retained or the minimally modified milk sensorial properties. Therefore, RF heating appears to be a suitable technique for the production of safe milk with a prolonged shelf life up to 40–45 days and without significant alterations of the organoleptic and nutritional attributes.
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Cortez MV, Soria EA. The Effect of Freeze-Drying on the Nutrient, Polyphenol, and Oxidant Levels of Breast Milk. Breastfeed Med 2016; 11:551-554. [PMID: 27925493 DOI: 10.1089/bfm.2016.0102] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Human milk banks need to extend the suitability of milk for breastfeeding, and for this technological advances are required. Our aim was to establish the capacity of freeze-drying to conserve milk properties without further oxidative deterioration. METHODS One hundred sixteen healthy women participated from the city of Cordoba (Argentina). Proteins, glucose, triglycerides, polyphenols, and markers (nitrites, superoxide anion, hydroperoxides, lipoperoxides, and γ-glutamyl transpeptidase) were measured in their fresh milk. Samples were then separated for three treatments as follows: freezing and conservation for 6 months at -80°C (F: positive control); freeze-drying for 24 hours at ≤-70°C and ≤1.33 Pa and conservation for 6 months at 4°C (FD: treatment of interest); and freeze-drying for 24 hours at ≤-70°C and ≤1.33 Pa and conservation for 6 months at -80°C (FD+F). Next, analyses were repeated and compared by ANOVA and Tukey tests. RESULTS Fresh milk showed these values per L as follows: proteins: 12.62 ± 2.51 g, glucose: 4.44 ± 0.25 g, triglycerides: 34.26 ± 0.59 g, polyphenols: 53.27 ± 8.67 mg, nitrites: 62.40 ± 19.09 mg, superoxide: 3,721.02 ± 198.80 OD, hydroperoxides: 7,343.76 ± 294.53 OD, lipoperoxides: 7,349.72 ± 398.72 OD, and γ-glutamyl transpeptidase: 4.66 ± 0.55 IU. Glucose was decreased after F treatment (p < 0.05), all variables were conserved by FD and were not improved by the FD + F combination. CONCLUSIONS Freeze-drying achieved suitable conservation and may improve bank functioning, by protecting nutritional properties, polyphenol-related functionality, and oxidative integrity of human milk through a 1-day treatment with easy maintenance.
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Affiliation(s)
- Mariela Valentina Cortez
- 1 Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Córdoba , CONICET, FCM, Argentina .,2 Comisión Nacional Salud Investiga , Ministerio de Salud de la Nación, Argentina
| | - Elio Andrés Soria
- 1 Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Córdoba , CONICET, FCM, Argentina
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