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De Jesús-Hernández AC, Delgado-Macuil RJ, Ruiz-Espinosa H, Amador-Espejo GG. High-power ultrasound bleaching technique for canola oil (Brassica napus L.): Pigments removal and quality parameters. Food Res Int 2023; 173:113449. [PMID: 37803776 DOI: 10.1016/j.foodres.2023.113449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 08/30/2023] [Accepted: 09/10/2023] [Indexed: 10/08/2023]
Abstract
Canola seeds (Brassica napus L.) are among the most commonly used seeds in Mexico for vegetable oil production. This is based on the high yield and content of polyunsaturated and monounsaturated fatty acids. During oil bleaching, it is important to maintain fatty acids in their cis configuration because of the health concerns associated with trans-fatty acid consumption. In this sense, the industrial processing parameters employed for this purpose present some limitations, such as high temperatures and long times, which may change the cis configuration to trans. In addition, the amount of bleaching clay employed for this process could be a source of contamination because it is disposed of after treatment. Therefore, the aim of this study was to develop a bleaching process for canola oil using high-power ultrasound (US). US processing was applied to nine treatments with different processing times (60, 75, and 90 min), clay percentages (1, 2, and 3%), and temperatures (60 and 80 °C) to determine the concentrations of chlorophyll a and b (µg chlo/100 g oil), carotenes (µg β-carotene/100 g oil), color (L*, a*, b*, C*, and h°), iodine value (g I2/100 g oil), and finally carrying out a spectroscopic analysis (ATR-FTIR and Raman). A conventional bleaching treatment (100 °C for 180 min, 3% bleaching clay) was used as a control. The results revealed that US treatments with 2% clay at 60 °C for 60 and 90 min eliminated most of the chlorophyll compounds (98%). However, in terms of carotenes reduction, these identical treatments exhibited a similar tendency to that of the control (approximately 30% decrease). These findings also affected the sample color, in which US treatments revealed chromatic coordinates that indicated yellow tones with chroma values that were more intense than those in the control samples. In terms of the iodine value, such treatments fulfilled the international standards for vegetable oils (90-100 g I2/100 g oil). Finally, the spectroscopic study revealed no trans configurations or the presence of different chemical compounds after US treatment, because neither of them presented typical peaks for those molecular configurations. In this regard, US can be a useful methodology for bleaching vegetable oils, helping to reduce time, and bleaching clay with similar pigment reduction results.
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Affiliation(s)
- A C De Jesús-Hernández
- Instituto Politécnico Nacional- Centro de Investigación en Biotecnología Aplicada, Ex-Hacienda San Juan Molino Carretera Estatal Tecuexcomac-Tepetitla Km 1.5, C.P. 90700, Tlaxcala, Mexico
| | - R J Delgado-Macuil
- Instituto Politécnico Nacional- Centro de Investigación en Biotecnología Aplicada, Ex-Hacienda San Juan Molino Carretera Estatal Tecuexcomac-Tepetitla Km 1.5, C.P. 90700, Tlaxcala, Mexico
| | - H Ruiz-Espinosa
- Benemérita Universidad Autónoma de Puebla- Facultad de Ingeniería Química, Colegio de Ingeniería en Alimentos, calle 18 sur av., San Claudio C.P. 72570, Mexico
| | - G G Amador-Espejo
- CONACYT- IPN, Centro de Investigación en Biotecnología Aplicada, Ex-Hacienda San Juan Molino Carretera Estatal Tecuexcomac-Tepetitla, Km 1.5, C.P. 90700, Mexico.
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Vargas SA, Delgado-Macuil RJ, Ruiz-Espinosa H, Rojas-López M, Amador-Espejo GG. High-intensity ultrasound pretreatment influence on whey protein isolate and its use on complex coacervation with kappa carrageenan: Evaluation of selected functional properties. Ultrason Sonochem 2021; 70:105340. [PMID: 32942167 PMCID: PMC7786567 DOI: 10.1016/j.ultsonch.2020.105340] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/16/2020] [Accepted: 09/03/2020] [Indexed: 05/08/2023]
Abstract
The aim of this work was to evaluate the influence of high-intensity ultrasound (HIUS) treatment on whey protein isolate (WPI) molecular structure as a previous step for complex coacervation (CC) with kappa-carrageenan (KC) and its influence on CC functional properties. Protein suspension of WPI (1% w/w) was treated with an ultrasound probe (24 kHz, 2 and 4 min, at 50 and 100% amplitude), non HIUS pretreated WPI was used as a control. Coacervation was achieved by mixing WPI and KC dispersions (10 min). Time and amplitude of the sonication treatment had a direct effect on the molecular structure of the protein, FTIR-ATR analysis detected changes on pretreated WPI secondary structure (1600-1700 cm-1) after sonication. CC electrostatic interactions were detected between WPI positive regions, KC sulfate group (1200-1260 cm-1), and the anhydrous oxygen of the 3,6 anhydro-D-galactose (940-1066 cm-1) with a partial negative charge. After ultrasound treatment, a progressive decrease in WPI particle size (nm) was detected. Rheology results showed pseudoplastic behavior for both, KC and CC, with a significant change on the viscosity level. Further, volume increment, stability, and expansion percentages of CC foams were improved using WPI sonicated. Besides, HIUS treatment had a positive effect on the emulsifying properties of the CC, increasing the time emulsion stability percentage. HIUS proved to be an efficient tool to improve functional properties in WPI-KC CC.
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Affiliation(s)
- Sara A Vargas
- Instituto Politécnico Nacional, Centro de Investigación en Biotecnología Aplicada, México, Ex-Hacienda San Juan Molino Carretera Estatal Tecuexcomac-Tepetitla Km 1.5, 90700 Tlaxcala Mexico
| | - R J Delgado-Macuil
- Instituto Politécnico Nacional, Centro de Investigación en Biotecnología Aplicada, México, Ex-Hacienda San Juan Molino Carretera Estatal Tecuexcomac-Tepetitla Km 1.5, 90700 Tlaxcala Mexico
| | - H Ruiz-Espinosa
- Benemérita Universidad Autónoma de Puebla, México, Facultad de Ingeniería Química, Colegio de Ingeniería en Alimentos, 18 Sur y Avenida San Claudio, 72570 Puebla, Mexico
| | - M Rojas-López
- Instituto Politécnico Nacional, Centro de Investigación en Biotecnología Aplicada, México, Ex-Hacienda San Juan Molino Carretera Estatal Tecuexcomac-Tepetitla Km 1.5, 90700 Tlaxcala Mexico
| | - G G Amador-Espejo
- CONACYT-Centro de Investigación en Biotecnología Aplicada IPN, México, Ex-Hacienda San Juan Molino Carretera Estatal Tecuexcomac-Tepetitla Km 1.5, 90700 Tlaxcala, Mexico.
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Escobar-Muciño E, Luna-Guevara ML, Ramos-Cassellis ME, Amador-Espejo GG, Castañeda-Lucio M, Arenas-Hernández MMP. Evaluation of process involved in the production of aromatic compounds in Gram-negative bacteria isolated from vanilla (Vanilla planifolia ex. Andrews) beans. J Appl Microbiol 2019; 128:1086-1098. [PMID: 31793107 DOI: 10.1111/jam.14537] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 10/15/2019] [Accepted: 11/28/2019] [Indexed: 11/29/2022]
Abstract
AIM The present investigation was aimed at isolating and identifying bacterial strains from cured vanilla beans. Additionally, the study focused on evaluating bacterial processes pertaining to the aromatic compounds production (ACP). METHODS AND RESULTS Three bacteria were isolated from Vanilla planifolia beans, previously subjected to the curing process. According to morphological, biochemical and 16S rRNA analysis, the strains were identified as Citrobacter sp., Enterobacter sp. and Pseudomonas sp. The polygalacturonase activity (PGA) was determined using the drop, cup-plate and DNS methods. Aromatic compounds production was analysed by cup-plate method using FA as substrate and quantified by high performance liquid chromatography (ppm), the functional groups of vanillic acid (VA) were identified by FT-IR and the aromatic compounds (AC) resistance was determined and reported as minimum inhibitory concentration. Citrobacter sp., Enterobacter sp. and Pseudomonas showed PGA (70·31 ± 364, 76·07 ± 12·47 and 51 ± 10·92 U ml-1 respectively), were producers of VA (3·23 ± 0·49, 324 ± 41 and 265·99 ± 11·61 ppm respectively) and were resistant to AC. CONCLUSIONS The Gram-negative bacteria isolated from V. planifolia beans were responsible for ACP. SIGNIFICANCE AND IMPACT OF THE STUDY This is the first evidence for the role of Gram-negative bacterial isolates from cured Mexican V. planifolia beans in the process related to ACP.
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Affiliation(s)
- E Escobar-Muciño
- Centro de Investigación en Ciencias Microbiológicas, Posgrado en Microbiología, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla, Puebla, México
| | - M L Luna-Guevara
- Colegío de Ingeniería en Alimentos, Facultad de Ingeniería Química, Benemérita Universidad Autónoma de Puebla, Puebla, Puebla, México
| | - M E Ramos-Cassellis
- Colegío de Ingeniería en Alimentos, Facultad de Ingeniería Química, Benemérita Universidad Autónoma de Puebla, Puebla, Puebla, México
| | - G G Amador-Espejo
- CONACYT-Centro de Investigación en Biotecnología Aplicada-IPN, Ex-Hacienda San Juan Molino Carretera Estatal Tecuexcomac, Tlaxcala, México
| | - M Castañeda-Lucio
- Centro de Investigación en Ciencias Microbiológicas, Posgrado en Microbiología, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla, Puebla, México
| | - M M P Arenas-Hernández
- Centro de Investigación en Ciencias Microbiológicas, Posgrado en Microbiología, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla, Puebla, México
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Evert-Arriagada K, Trujillo AJ, Amador-Espejo GG, Hernández-Herrero MM. High pressure processing effect on different Listeria spp. in a commercial starter-free fresh cheese. Food Microbiol 2018; 76:481-486. [PMID: 30166177 DOI: 10.1016/j.fm.2018.07.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 11/20/2017] [Accepted: 07/20/2018] [Indexed: 10/28/2022]
Abstract
In this study, both microbial inactivation and growth of Listeria spp. inoculated in commercial free-starter fresh cheese was evaluated after high-pressure processing (HPP). HPP conditions (300, 400, 500 and 600 MPa at 6 °C for 5 min) and inoculum level (3-4 or 6-7 log CFU/g of cheese), as well as differences among strains inoculated (Listeria innocua, L. monocytogenes CECT 4031 and L. monocytogenes Scott A) were investigated. Inactivation and generation of sublethal injury were determined after HPP using ALOA (Agar Listeria according to Ottaviani and Agosti) and TAL (Thin Agar Layer) plating methods, respectively. Listeria inactivation increased with the pressure applied, presenting some statistical differences between the employed strains, inoculum level and sublethal injury. The highest lethality values were obtained at 600 MPa for the three strains tested, although the 500 MPa treatment presented high lethality for L. innocua and L. monocytogenes CECT 4031. After treatment, L. innocua and L. monocytogenes CECT 4031 counts in fresh cheese increased gradually during cold storage. By contrast, counts in cheeses inoculated with L. monocytogenes Scott A did not change significantly (p ≥ 0.05), being this strain the most pressure resistant and with the slowest growth rate. The manuscript present information supporting that, strains with high-level resistance should be employed during inactivation studies, instead of surrogate microorganisms. Application of HPP treatments of 500 MPa and especially 600 MPa on fresh cheeses would be effective to eliminate the most resistant microorganism to a level that should not present a public health risk under normal conditions of distribution and storage.
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Affiliation(s)
- K Evert-Arriagada
- Centre d'Innovació, Recerca i Transferència en Tecnologia dels Aliments (CIRTTA), XaRTA, TECNIO, MALTA Consolider, Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - A J Trujillo
- Centre d'Innovació, Recerca i Transferència en Tecnologia dels Aliments (CIRTTA), XaRTA, TECNIO, MALTA Consolider, Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - G G Amador-Espejo
- Cátedras CONACYT-Instituto Politécnico Nacional, Centro de Investigación en Biotecnología Aplicada, Tepetitla de Lardizabal, 90700, Tlaxcala, Mexico
| | - M M Hernández-Herrero
- Centre d'Innovació, Recerca i Transferència en Tecnologia dels Aliments (CIRTTA), XaRTA, TECNIO, MALTA Consolider, Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain.
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Amador-Espejo GG, Gallardo-Chacón JJ, Juan B, Trujillo AJ. Effect of ultra-high-pressure homogenization at moderate inlet temperatures on volatile profile of milk. J FOOD PROCESS ENG 2017. [DOI: 10.1111/jfpe.12548] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- G. G. Amador-Espejo
- CONACYT - Centro de Investigación en Biotecnología Aplicada-IPN, Ex-Hacienda San Juan Molino Carretera Estatal Tecuexcomac, Tepetitla Km 1.5; 90700 Tlaxcala Mexico
- Centre Especial de Recerca Planta de Tecnologia dels Aliments (CERPTA), XaRTA, TECNIO, MALTA Consolider, Departament de Ciència Animal i dels Aliments; Universitat Autònoma de Barcelona; Bellaterra, Barcelona 08193 Spain
| | - J. J. Gallardo-Chacón
- Centre Especial de Recerca Planta de Tecnologia dels Aliments (CERPTA), XaRTA, TECNIO, MALTA Consolider, Departament de Ciència Animal i dels Aliments; Universitat Autònoma de Barcelona; Bellaterra, Barcelona 08193 Spain
| | - B. Juan
- Centre Especial de Recerca Planta de Tecnologia dels Aliments (CERPTA), XaRTA, TECNIO, MALTA Consolider, Departament de Ciència Animal i dels Aliments; Universitat Autònoma de Barcelona; Bellaterra, Barcelona 08193 Spain
| | - A. J. Trujillo
- Centre Especial de Recerca Planta de Tecnologia dels Aliments (CERPTA), XaRTA, TECNIO, MALTA Consolider, Departament de Ciència Animal i dels Aliments; Universitat Autònoma de Barcelona; Bellaterra, Barcelona 08193 Spain
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