1
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Li Y, Han J, Yarley OPN, Wang Y, Wang Y, Zhang A, Fan X, Zhou C, Lv W. Effects of combined drying techniques and cellulase hydrolysis on the nutritional value and sensory properties of shiitake mushrooms (Lentinus edodes). Food Chem 2024; 450:139387. [PMID: 38643648 DOI: 10.1016/j.foodchem.2024.139387] [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: 12/15/2023] [Revised: 04/06/2024] [Accepted: 04/14/2024] [Indexed: 04/23/2024]
Abstract
Dried shiitake mushrooms offer rich nutritional value and unique sensory properties, prompting further investigation. The effects of different drying techniques (hot air drying (HAD), infrared hot air drying (IRHAD), pulsed vacuum drying (PVD), vacuum freeze drying (VFD), and natural drying (ND)) combined with enzymatic hydrolysis on the release of flavor compounds and nutrients from shiitake mushrooms were explored. The combination of HAD with cellulase hydrolysis yielded notably high levels of umami amino acids (5.4723 ± 0.1501 mg/g) and 5'-nucleotides (4.0536 ± 0.0062 mg/g), and superior volatile flavors. Combined with cellulase hydrolysis, IRHAD achieved the highest level of total sugars (6.57 ± 0.34 mg/mL), VFD resulted in the greatest soluble protein content (153.21 ± 0.23 μg/mL), PVD yielded the highest total phenolics content (93.20 ± 0.41 μg GAE/mL), and ND produced the maximum reducing sugar content (5.79 ± 0.13 mg/mL). This study addresses crucial gap in the post-drying processing of shiitake mushrooms, offering valuable insights for further product development of shiitake mushrooms.
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Affiliation(s)
- Yao Li
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jingyi Han
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Otu Phyllis Naa Yarley
- Department of Science Laboratory Technology, Accra Technical University, Barnes Rd., Accra, Ghana
| | - Yujin Wang
- Zhejiang Wufeng Freezing Food Co., Ltd., Hangzhou 310018, China
| | - Yang Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Ao Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xingyu Fan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Cunshan Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China.
| | - Weiqiao Lv
- College of Engineering, China Agricultural University, Beijing 100091, China
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2
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Xu H, Sutar PP, Ren W, Wu M. Revealing the mechanism of post-harvest processing on rose quality based on dynamic changes in water content, enzyme activity, volatile and non-volatile metabolites. Food Chem 2024; 448:139202. [PMID: 38579556 DOI: 10.1016/j.foodchem.2024.139202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/21/2024] [Accepted: 03/29/2024] [Indexed: 04/07/2024]
Abstract
Existing studies on post-harvest processing of edible roses have mainly focused on processing techniques and physicochemical properties of the final dried products, with limited studies on how changes in metabolites during processing affect the quality of these products. This study investigated changes in water content and status, enzyme activity, phenolic compounds, and volatile and non-volatile compounds during processing and revealed the mechanisms by which post-harvest processing (drying without blanching (WBD) and drying with blanching (BD)) affects the quality of dried roses by establishing their correlations. Results showed that the blanching reduced the relative content of free water and water activity, thus reducing the subsequent drying time and enzyme activity. The BD method caused higher levels of phenolic compounds than the WBD method in terms of gallic acid, ellagic acid, epicatechin, and quercetin. The OPLS-DA analysis identified 6 differential volatiles out of 72 detected volatiles, contributing to the unique aroma of dried roses by activating olfactory receptors through hydrogen bonding and hydrophobic interactions. 58 differential metabolites were screened from 964 non-volatile metabolites. KEGG pathway analysis revealed that the changes in volatile and non-volatile metabolites induced by different processing methods were due to the effect of blanching on glutathione and fatty acid metabolism. These findings provide a comprehensive understanding of how post-harvest processing affects the quality of dried roses.
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Affiliation(s)
- Huihuang Xu
- College of Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing 100083, China
| | - Parag Prakash Sutar
- Department of Food Process Engineering, National Institute of Technology Rourkela, Odisha 769008, India
| | - Weike Ren
- College of Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing 100083, China
| | - Min Wu
- College of Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing 100083, China.
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3
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Liang J, Heimbach J, Zhang Y, Rigling M, Xiang C, Qin D, Zhu L, Das SBK, Kohlus R, Zhang Y. Characterization of the Aroma Profile of Ginger Powder Produced by a Split-Stream Spray-Drying Process. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:13273-13283. [PMID: 38805030 DOI: 10.1021/acs.jafc.4c00991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Freeze-dried ginger (Zingiber officinale) is renowned for its high quality, but it is expensive. As an alternative, spray drying can be explored for producing ginger powder. However, sugar rich feed solutions can lead to stickiness development during the process. Adding carrier materials increases costs and labeling. Accordingly, a split-stream spray-drying process was developed, where ginger fibers in their natural composition were reintroduced as a carrier material into the spray-drying process. The inlet and outlet temperatures were set at 220 and 80 °C, respectively, for optimal aroma retention. Using a stir bar sorptive extraction-gas chromatography-mass spectrometry-olfactometry, the results revealed that reintegrating ginger fibers significantly increased the concentration of eight key odorants. Although freeze-dried ginger retains more aroma, the total concentration of twenty-seven odorants in the developed spray-dried ginger was 1.9 times higher compared to frozen ginger.
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Affiliation(s)
- Jiaqi Liang
- Institute of Food Science and Biotechnology, Department of Flavor Chemistry, University of Hohenheim, Fruwirthstraße 12, Stuttgart 70599, Germany
| | - Julia Heimbach
- Institute of Food Science and Biotechnology, Department of Process Engineering and Food Powders, University of Hohenheim, Garbenstraße 25, Stuttgart 70599, Germany
| | - Youfeng Zhang
- Institute of Food Science and Biotechnology, Department of Flavor Chemistry, University of Hohenheim, Fruwirthstraße 12, Stuttgart 70599, Germany
| | - Marina Rigling
- Institute of Food Science and Biotechnology, Department of Flavor Chemistry, University of Hohenheim, Fruwirthstraße 12, Stuttgart 70599, Germany
| | - Can Xiang
- Institute of Food Science and Biotechnology, Department of Flavor Chemistry, University of Hohenheim, Fruwirthstraße 12, Stuttgart 70599, Germany
| | - Dan Qin
- Institute of Food Science and Biotechnology, Department of Flavor Chemistry, University of Hohenheim, Fruwirthstraße 12, Stuttgart 70599, Germany
| | - Lin Zhu
- Institute of Food Science and Biotechnology, Department of Flavor Chemistry, University of Hohenheim, Fruwirthstraße 12, Stuttgart 70599, Germany
| | - Shivani Bipul Kumar Das
- Institute of Food Science and Biotechnology, Department of Flavor Chemistry, University of Hohenheim, Fruwirthstraße 12, Stuttgart 70599, Germany
| | - Reinhard Kohlus
- Institute of Food Science and Biotechnology, Department of Process Engineering and Food Powders, University of Hohenheim, Garbenstraße 25, Stuttgart 70599, Germany
| | - Yanyan Zhang
- Institute of Food Science and Biotechnology, Department of Flavor Chemistry, University of Hohenheim, Fruwirthstraße 12, Stuttgart 70599, Germany
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4
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Akhoundzadeh Yamchi A, Sharifian F, Khalife E, Kaveh M. Drying kinetic, thermodynamic and quality analyses of infrared drying of truffle slices. J Food Sci 2024; 89:3666-3686. [PMID: 38725362 DOI: 10.1111/1750-3841.17096] [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: 07/15/2023] [Revised: 03/20/2024] [Accepted: 04/10/2024] [Indexed: 06/14/2024]
Abstract
Kinetic and thermodynamic parameters are the most important part for making a suitable tool for drying agricultural products. Moreover, calculation of the energy required for the drying of product, the properties of the rehydration ratio, the food appearance changes, and the evaluation of the microstructure of food are crucial. Since the thermodynamic properties of truffle slices have not yet been reported, this study aims to establish a mathematical model to describe drying process of agriculture product, evaluate the effective moisture diffusion coefficient (Deff), determining the activation energy (Ea) to elucidate the thermodynamic characteristics, measure color characteristics, and rehydration ratio (RR) during the drying process of truffle slices. Truffle slices were dried in an infrared (IR) dryer at four temperatures of 50-80°C and two thicknesses of 0.5 and 1 cm. The best model to describe the drying process of truffle slices was Midilli et al.'s model. The value of Deff, SEC, and RR were in the range of 3.06 × 10-8 to 2.48 × 10-7 m2/s, 79.68-191.271 kWh/kg, and 5.99-7.49, respectively. The Deff of truffle slices increased with the above-mentioned parameters of the samples. The Ea obtained was 26.62-27.43 kJ/mol. The results indicated that enthalpy and entropy decreased with increasing drying temperature, while Gibbs free energy improved. The enthalpy, entropy, and Gibbs free energy values changed between 24.48-25.28 kJ/mol, -130.47 to -122.63 J/mol °K, and 63.97-70.17 kJ/mol, respectively. In addition, the results of color attributes decreased with increasing temperature, while chroma oppositely increased.
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Affiliation(s)
| | - Faroogh Sharifian
- Department of Mechanical Engineering of Biosystems, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Esmail Khalife
- Department of Civil Engineering, Cihan University-Erbil, Kurdistan Region, Iraq
| | - Mohammad Kaveh
- Department of Petroleum Engineering, College of Engineering, Knowledge University, Erbil, Iraq
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5
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Li L, Bao Y, Guo F, Chen J, Zhao M, Cao W, Liu W, Duan X, Ren G. Effect of constant and variable temperature drying processes on drying characteristics, quality, and volatile profile of rose petals in infrared-assisted spouted bed drying. J Food Sci 2024; 89:1387-1402. [PMID: 38282373 DOI: 10.1111/1750-3841.16950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/20/2023] [Accepted: 01/08/2024] [Indexed: 01/30/2024]
Abstract
The edible rose (Rosa Crimson Glory) petals were dried using infrared-assisted spouted bed drying technology. The effects of different drying temperature conditions (30, 35, 40, 45, and 50°C, as well as stepped heating drying [SHD] and stepped cooling drying) on the drying characteristics, physicochemical properties, antioxidant capacity, and changes in volatile flavor compounds of the rose petals were investigated. The results showed that the drying time was shortened with increasing drying temperature. Both variable temperature drying processes gave the shortest drying times. Optimal color retention of rose petals was achieved at a constant temperature of 40°C and SHD. Increased drying temperature resulted in higher water-soluble polysaccharide content in the dried rose petals, whereas lower temperatures facilitated anthocyanin preservation. The variable temperature drying processes favored the retention of water-soluble polysaccharides in rose petals, but not anthocyanins. Regarding antioxidant capacity, the samples dried at 40°C and those subjected to the two variable temperature drying processes performed better. This study also analyzed the differences in volatile flavor compounds of rose petals dried under different drying conditions. It was found that the majority of volatile flavor compounds in the rose petals dried by SHD exhibited higher content levels than the other drying conditions. Therefore, considering a thorough evaluation of all relevant factors, it was clear that utilizing the SHD process was the most efficient method for obtaining the best quality rose petals overall.
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Affiliation(s)
- Linlin Li
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
- Agricultural Product Drying Equipment Engineering Technology Research Center, Henan University of Science and Technology, Luoyang, China
| | - Yunfei Bao
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
| | - Fuzhen Guo
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
| | - Junliang Chen
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
- Agricultural Product Drying Equipment Engineering Technology Research Center, Henan University of Science and Technology, Luoyang, China
| | - Mengyue Zhao
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
| | - Weiwei Cao
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
- Agricultural Product Drying Equipment Engineering Technology Research Center, Henan University of Science and Technology, Luoyang, China
| | - Wenchao Liu
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
- Agricultural Product Drying Equipment Engineering Technology Research Center, Henan University of Science and Technology, Luoyang, China
| | - Xu Duan
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
- Agricultural Product Drying Equipment Engineering Technology Research Center, Henan University of Science and Technology, Luoyang, China
| | - Guangyue Ren
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
- Agricultural Product Drying Equipment Engineering Technology Research Center, Henan University of Science and Technology, Luoyang, China
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6
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Setareh R, Mohammadi-Ghermezgoli K, Ghaffari-Setoubadi H, Alizadeh-Salteh S. The effectiveness of hot-air, infrared and hybrid drying techniques for lemongrass: appearance acceptability, essential oil yield, and volatile compound preservation. Sci Rep 2023; 13:18820. [PMID: 37914737 PMCID: PMC10620145 DOI: 10.1038/s41598-023-44934-6] [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: 07/07/2023] [Accepted: 10/13/2023] [Indexed: 11/03/2023] Open
Abstract
Lemongrass is a fragrant herb with lengthy, thin leaves that contains myrcene (an aromatic compound) as well as citral and geraniol (antimicrobial compounds). Therefore, identifying an appropriate drying method for this plant is crucial for maintaining aromatic and antimicrobial compounds and enhancing the shelf life of the product. This investigation seeks to assess the influence of various drying tactics involving hot air at temperatures of 40, 50, and 60 °C, infrared radiation at intensities of 0.5, 0.6, and 0.8 [Formula: see text], sequential hot-air/infrared, as well as simultaneous hot air-infrared, on the drying mechanism, color, appearance, yield, and essential oil constituents of lemongrass leaves, with the objective of enhancing the marketability of the product. The essential oils of lemongrass were extracted through the process of hydro-distillation, and subsequently, the volatile compounds present were analyzed using Gas Chromatography-Mass Spectrometry (GC-MS). The findings indicated: (a) The most appropriate technique for preserving optimal color quality of lemongrass leaves was through the application of hot air drying solely at a temperature of 60 °C; (b) To optimize the retention and amplification of the essential oil content in lemongrass, our study recommends the employment of a simultaneous hybrid drying technique involving hot air drying at a temperature of 50 °C in conjunction with infrared drying set at a radiation intensity level of 0.6 [Formula: see text]; and (c) The data analysis demonstrated that in order to achieve elevated levels of volatile compounds, specifically neral and geranial, infrared drying with a radiation intensity of 0.6 and 0.8 [Formula: see text], respectively, was found to be optimal.
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Affiliation(s)
- Roghayeh Setareh
- Department of Biosystems Engineering, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | | | | | - Saeideh Alizadeh-Salteh
- Department of Horticultural Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
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7
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Zhang J, Zheng X, Xiao H, Li Y, Yang T. Effect of Combined Infrared Hot Air Drying on Yam Slices: Drying Kinetics, Energy Consumption, Microstructure, and Nutrient Composition. Foods 2023; 12:3048. [PMID: 37628048 PMCID: PMC10453475 DOI: 10.3390/foods12163048] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/31/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
Using hot air drying (HAD) and combined infrared hot air drying (IR-HAD) test devices, the drying kinetics, unit energy consumption, color difference values, rehydration rate, microstructure, and changes in polysaccharide and allantoin contents of yam slices were examined at various temperatures (50 °C, 55 °C, 60 °C, 65 °C, and 70 °C). The findings demonstrated that each of the aforementioned parameters was significantly impacted by the drying temperature. IR-HAD dries quicker and takes less time to dry than HAD. The Deff of IR-HAD is higher than that of HAD at the same temperature and increases with the increase in temperature. The activation energy required for IR-HAD (26.35 kJ/mol) is lower than that required for HAD (32.53 kJ/mol). HAD uses more energy per unit than IR-HAD by a factor of greater than 1.3. Yam slices treated with IR-HAD had higher microscopic porosity, better rehydration, lower color difference values, and higher polysaccharide and allantoin levels than HAD-treated yam slices. The IR-HAD at 60 °C had the greatest comprehensive rating after a thorough analysis of the dried yam slices using the coefficient of variation method. Three statistical indicators were used to evaluate six thin-layer drying models, and the Weibull model was most applicable to describe the variation of drying characteristics of yam slices.
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Affiliation(s)
- Jikai Zhang
- College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China; (J.Z.); (Y.L.); (T.Y.)
- Key Laboratory of Northwest Agricultural Equipment, Ministry of Agriculture and Rural Affairs, Shihezi 832003, China
- Key Laboratory of Modern Agricultural Machinery Corps, Shihezi 832003, China
| | - Xia Zheng
- College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China; (J.Z.); (Y.L.); (T.Y.)
- Key Laboratory of Northwest Agricultural Equipment, Ministry of Agriculture and Rural Affairs, Shihezi 832003, China
- Key Laboratory of Modern Agricultural Machinery Corps, Shihezi 832003, China
| | - Hongwei Xiao
- College of Engineering, China Agricultural University, Beijing 100080, China;
| | - Yican Li
- College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China; (J.Z.); (Y.L.); (T.Y.)
- Key Laboratory of Northwest Agricultural Equipment, Ministry of Agriculture and Rural Affairs, Shihezi 832003, China
- Key Laboratory of Modern Agricultural Machinery Corps, Shihezi 832003, China
| | - Taoqing Yang
- College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China; (J.Z.); (Y.L.); (T.Y.)
- Key Laboratory of Northwest Agricultural Equipment, Ministry of Agriculture and Rural Affairs, Shihezi 832003, China
- Key Laboratory of Modern Agricultural Machinery Corps, Shihezi 832003, China
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8
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Zamani S, Bakhshi D, Sahraroo A, Ebadi M. Improvement of phytochemical and quality characteristics of Dracocephalum kotschyi by drying methods. Food Sci Nutr 2023; 11:4246-4262. [PMID: 37457179 PMCID: PMC10345690 DOI: 10.1002/fsn3.3351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/09/2023] [Accepted: 03/17/2023] [Indexed: 07/18/2023] Open
Abstract
This experiment was conducted to evaluate the effects of different drying methods on drying parameters and qualitative characteristics of Dracocephalum kotschyi in a completely randomized design with three replications. Treatments included shade drying as control, sun drying, cabinet drying (CD at 50 and 60°C), refractance window drying (RWD), infrared drying (IRD) at 200 and 300 W, and combination of RWD+ IRD at 200 and 300 W. According to the results, IRD, RWD, and RWD+ IRD effectively maintained valuable secondary metabolites compared to the conventional drying methods. The maximum total phenol content (2.7 and 2.66 mg GAE/g dry weight), total flavonoid content (2.26 and 2.33 mg QE/g dry weight), antioxidant activity (79% and 78.33%), and essential oil content (0.65% and 0.76%) were obtained from plants dried by RWD and IRD. Samples dried by RWD, IRD, and RWD+ IRD had high color quality, acceptable green color, and less browning. Also, RWD and IRD methods effectively reduced microbial contamination of dried plants compared to the control and other methods. The minimum aerobic mesophiles, mold, yeast, and coliforms were observed at 3.11, 0, and 1.47 log CFU/g in IRD 300 W and 3.17, 1, and 1.30 log CFU/g in RWD. D. kotschyi dried at CD 50°C had the maximum microbial contamination. Generally, according to the obtained results, RWD and IRD methods are suggested for drying of D. kotschyi and similar herbs due to shortening the drying time, preserving and improving the quality properties of dried plants.
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Affiliation(s)
- Sahar Zamani
- Department of Horticultural Science, Faculty of Agricultural SciencesUniversity of GuilanRashtIran
| | - Davood Bakhshi
- Department of Horticultural Science, Faculty of Agricultural SciencesUniversity of GuilanRashtIran
| | - Amir Sahraroo
- Department of Horticultural Science, Faculty of Agricultural SciencesUniversity of GuilanRashtIran
| | - Mohammad‐Taghi Ebadi
- Department of Horticultural Science, Faculty of AgricultureTarbiat Modares UniversityTehranIran
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9
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Response Surface Methodology Approach for Predicting Convective/Infrared Drying, Quality, Bioactive and Vitamin C Characteristics of Pumpkin Slices. Foods 2023; 12:foods12051114. [PMID: 36900631 PMCID: PMC10000522 DOI: 10.3390/foods12051114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/27/2023] [Accepted: 03/02/2023] [Indexed: 03/09/2023] Open
Abstract
In this research, a convective/infrared (CV/IR) dryer was used to dry pumpkin slices. For optimization of the drying conditions, the influence of three levels of independent variables including air temperature (40, 55, and 70 °C), air velocity (0.5, 1, and 1.5 m/s), and IR power (250, 500, and 750 W) were assessed by response surface method (RSM) through a face-centered central composite design. Analysis of variance (non-fitting factor and R2 value) was employed to determine the desirability of the model. Response surfaces and diagrams were also utilized to show the interactive influence of the independent variables with the response variables (drying time, energy consumption, shrinkage, total color variation, rehydration ratio, total phenol, antioxidant, and vitamin C contents). According to the results, optimal drying conditions involved a temperature of 70 °C, air velocity of 0.69 m/s, and IR power of 750 W. At the mentioned conditions, response variables of drying time, energy consumption, shrinkage, color, rehydration ratio, total phenol, antioxidant, and vitamin C contents were 72.53 min, 24.52 MJ/kg, 23%, 14.74, 4.97, 617.97 mg GA/100 g dw, 81.57%, and 4.02 mg/g dw, with a confidence level of 0.948, respectively.
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10
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del Carmen Razola-Díaz M, Guerra-Hernández EJ, Gómez-Caravaca AM, García-Villanova B, Verardo V. Mathematical modelling of drying kinetics of avocado peels and its influence on flavan-3-ols content and antioxidant activity. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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11
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Razola-Díaz MDC, Verardo V, Gómez-Caravaca AM, García-Villanova B, Guerra-Hernández EJ. Mathematical Modelling of Convective Drying of Orange By-Product and Its Influence on Phenolic Compounds and Ascorbic Acid Content, and Its Antioxidant Activity. Foods 2023; 12:foods12030500. [PMID: 36766029 PMCID: PMC9914427 DOI: 10.3390/foods12030500] [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: 12/21/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 01/24/2023] Open
Abstract
Orange peel is one of the main by-products from juice processing, and is considered as a promising source of phenolic compounds with anti-carcinogenic, anti-inflammatory, anti-microbial and antioxidant properties. The drying is an essential step to ensure the storage of this by-product at an industrial level, in order to use it as a functional ingredient or as a nutraceutical. Thus, this research focuses on the evaluation of the effect of the convective air-drying process in orange by-products at three different temperatures (40, 60 and 80 °C) and air flows (0, 0.8 and 1.6 m/s) on the phenolic content (measured by HPLC-MS), the antioxidant activity (measured by DPPH, ABTS and FRAP), and the vitamin C content (measured by HPLC-UV/VIS). Moreover, the mathematical modelling of its drying kinetics was carried out to examine the orange by-product behavior. Among the tested mathematical models, the Page model reported the highest fit and the best drying conditions, which showed the lowest reductions were at 60 °C with an air flow of 1.6 m/s and taking 315 min.
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Affiliation(s)
- María del Carmen Razola-Díaz
- Department of Nutrition and Food Science, University of Granada, Campus of Cartuja, 18011 Granada, Spain
- Institute of Nutrition and Food Technology ‘José Matáix’, Biomedical Research Centre, University of Granada, Avda del Conocimiento sn, 18100 Granada, Spain
| | - Vito Verardo
- Department of Nutrition and Food Science, University of Granada, Campus of Cartuja, 18011 Granada, Spain
- Institute of Nutrition and Food Technology ‘José Matáix’, Biomedical Research Centre, University of Granada, Avda del Conocimiento sn, 18100 Granada, Spain
- Correspondence:
| | - Ana María Gómez-Caravaca
- Institute of Nutrition and Food Technology ‘José Matáix’, Biomedical Research Centre, University of Granada, Avda del Conocimiento sn, 18100 Granada, Spain
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Avda Fuentenueva s/n, 18071 Granada, Spain
| | - Belén García-Villanova
- Department of Nutrition and Food Science, University of Granada, Campus of Cartuja, 18011 Granada, Spain
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12
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Wang H, Wang Q, Lai A, Zhu J, Huang X, Hu G. Multi-Response Optimization of Pyrrolizidine Alkaloids Removal from Chrysanthemum morifolium by High-Pressure Extraction. Foods 2022; 11:foods11233827. [PMID: 36496634 PMCID: PMC9737379 DOI: 10.3390/foods11233827] [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: 11/06/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022] Open
Abstract
As an ingredient in various foods, Chrysanthemum morifolium flower is popular due to its multiple health benefits. Pyrrolizidine alkaloids (PAs) are hepatotoxic secondary metabolites in Chrysanthemum family. Effects of high-pressure extraction (HPE) on PAs removal efficiency, as well as the retention efficiency of functional components, including chlorogenic acid, luteolin-7-β-D-glucopyranoside, 3,5-dicaffeyl quinic acid and total flavonoids, were investigated and optimized using response surface methodology (RSM). Pressure (0.1-200 MPa), numbers of cycles (1-5) and acetic acid concentration (0-10%) were chosen as the independent variables. The results indicated that the pressure was the most significant factors affecting all responses. The optimum HPE for removing Pas and retaining functional components were set at 124 MPa, with one cycle and with an acetic acid concentration of 10%. After comparing the experimental optimum values and predicted optimum values, the validity of RSM model was proved.
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Affiliation(s)
- Hao Wang
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 298 Deshengzhong Road, Hangzhou 310021, China
| | - Qiang Wang
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 298 Deshengzhong Road, Hangzhou 310021, China
| | - Aiping Lai
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 298 Deshengzhong Road, Hangzhou 310021, China
| | - Jiahong Zhu
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 298 Deshengzhong Road, Hangzhou 310021, China
| | - Xiuzhu Huang
- Institute for the Control of Agrochemicals, Ministry of Agriculture and Rural Affairs, 22 Maizidian Road, Beijing 100125, China
- Correspondence: (X.H.); (G.H.); Tel.: +86-010-59194067 (X.H.); +86-571-86417319 (G.H.)
| | - Guixian Hu
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 298 Deshengzhong Road, Hangzhou 310021, China
- Correspondence: (X.H.); (G.H.); Tel.: +86-010-59194067 (X.H.); +86-571-86417319 (G.H.)
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Huang X, Li Y, Zhou X, Wang J, Zhang Q, Yang X, Zhu L, Geng Z. Prediction of Apple Slices Drying Kinetic during Infrared-Assisted-Hot Air Drying by Deep Neural Networks. Foods 2022; 11:3486. [PMID: 36360099 PMCID: PMC9658811 DOI: 10.3390/foods11213486] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/20/2022] [Accepted: 10/29/2022] [Indexed: 07/03/2024] Open
Abstract
The effects of temperature, air velocity, and infrared radiation distances on the drying characteristics and quality of apple slices were investigated using infrared-assisted-hot air drying (IRAHAD). Drying temperature and air velocity had remarkable effects on the drying kinetics, color, total phenol content, total flavonoid content, and vitamin C content (VCC) of apple slices. Infrared radiation distance demonstrated similar results, other than for VCC and color. The shortest drying time was obtained at 70 °C, air velocity of 3 m/s and infrared radiation distance of 10 cm. A deep neural network (DNN) was developed, based on 4526 groups of apple slice drying data, and was applied to predict changes in moisture ratio (MR) and dry basis moisture content (DBMC) of apple slices during drying. DNN predicted that the coefficient of determination (R2) was 0.9975 and 1.0000, and the mean absolute error (MAE) was 0.001100 and 0.000127, for MR and DBMC, respectively. Furthermore, DNN obtained the highest R2 and lowest MAE values when compared with multilayer perceptron (MLP) and support vector regression (SVR). Therefore, DNN can provide new ideas for the rapid detection of apple moisture and guide apple processing in order to improve quality and intelligent control in the drying process.
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Affiliation(s)
- Xiao Huang
- College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
| | - Yongbin Li
- College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
| | - Xiang Zhou
- College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
| | - Jun Wang
- Engineering Research Center for Production Mechanization of Oasis Special Economic Crop, Ministry of Education, Shihezi 832000, China
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Qian Zhang
- College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
- Engineering Research Center for Production Mechanization of Oasis Special Economic Crop, Ministry of Education, Shihezi 832000, China
- Xinjiang Production and Construction Corps Key Laboratory of Modern Agricultural Machinery, Shihezi 832000, China
| | - Xuhai Yang
- College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
- Engineering Research Center for Production Mechanization of Oasis Special Economic Crop, Ministry of Education, Shihezi 832000, China
- Xinjiang Production and Construction Corps Key Laboratory of Modern Agricultural Machinery, Shihezi 832000, China
| | - Lichun Zhu
- College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
| | - Zhihua Geng
- College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
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Fortification of Wheat Bread with Edible Chrysanthemum (Chrysanthemum morifolium Ramat.): Unraveling the Mechanisms of Dough Rheology and Bread Quality Changes. FOOD BIOPROCESS TECH 2022. [DOI: 10.1007/s11947-022-02924-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hot-Air Flow Rolling Dry-Blanching Pretreatment Improves the Drying Quality of Acanthopanax sessiliflorus by Increasing the Drying Rate and Inactivating Enzymes. Foods 2022. [PMCID: PMC9601497 DOI: 10.3390/foods11203186] [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] [Indexed: 11/16/2022] Open
Abstract
The processing of Acanthopanax sessiliflorus has attracted interest due to its health benefits. In this work, an emerging blanching technology, called hot-air flow rolling dry-blanching (HMRDB), was employed to treat A. sessiliflorus before drying. The effects of varied blanching times (2–8 min) on enzyme inactivation, drying characteristics, bioactive compound retention, and microstructure were examined. The results demonstrated that blanching for 8 min rendered polyphenol oxidase and peroxidase nearly inactive. The blanching process reduced the drying time of samples by up to 57.89% compared to an unblanched sample. The Logarithmic model showed good fitting performance for the drying curves. The total phenolic and flavonoid content of the dried product increased as blanching time increased. The total anthocyanin content of the samples blanched for 6 min was 3.9 times higher than that of the unblanched samples, and 8 min of blanching produced the greatest DPPH• and ABTS• scavenging capabilities. The retention of active compounds in a dried product is a result of the inactivation of enzymes and a reduced drying period. Changes in the porous structure of the blanched samples would be responsible for the accelerated drying rate, according to microstructural analysis. These results indicate that HMRDB enhances the drying process and improves drying quality when applied to A. sessiliflorus before drying.
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