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Pinto M, Kusch C, Belmonte K, Valdivia S, Valencia P, Ramírez C, Almonacid S. Application of CO 2-Laser Micro-Perforation Technology to Freeze-Drying Whole Strawberry ( Fragaria ananassa Duch.): Effect on Primary Drying Time and Fruit Quality. Foods 2024; 13:1465. [PMID: 38790765 PMCID: PMC11119729 DOI: 10.3390/foods13101465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 04/22/2024] [Accepted: 04/25/2024] [Indexed: 05/26/2024] Open
Abstract
Freeze-drying (FD) processing preserves foods by combining the most effective traditional technologies. FD conserves the structure, shape, freshness, nutritional/bioactive value, color, and aroma at levels similar to or better than those of refrigerated and frozen foods while delivering the shelf-stable convenience of canned/hot-air-dehydrated foods. The mass transfer rate is the essential factor that can slow down the FD process, resulting in an excessive primary drying time and high energy consumption. The objective of this study was to reduce the FD processing time using CO2 laser technology to improve product competitiveness in the preservation of whole strawberries. The research process consisted of the selection and characterization of fresh strawberries, followed by preparation, pre-treatment, freeze-drying, a primary drying time assessment, and a quality comparison. Experiments were carried out using strawberries without micro-perforation and with five and eight micro-perforations. Quality parameters were determined for fresh, frozen/thawed, and freeze-dried/rehydrated strawberries. It was found that the primary drying time can be significantly reduced by 20% (95% CI) from 26.7 h for non-perforated fruits to 22.3 h when five micro-perforations are made on each strawberry. The quality parameters used to evaluate the strawberries did not show significant differences when comparing frozen/thawed fruits with freeze-dried/rehydrated fruits. The experiments conducted in this study showed that freeze-drying may efficiently compete with freezing technology when processing whole strawberries.
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Affiliation(s)
- Marlene Pinto
- Departamento de Ingeniería Química y Ambiental, Universidad Técnica Federico Santa María, Valparaíso 2390123, Chile; (M.P.); (C.K.); (K.B.); (S.V.); (C.R.)
| | - Cynthia Kusch
- Departamento de Ingeniería Química y Ambiental, Universidad Técnica Federico Santa María, Valparaíso 2390123, Chile; (M.P.); (C.K.); (K.B.); (S.V.); (C.R.)
| | - Karyn Belmonte
- Departamento de Ingeniería Química y Ambiental, Universidad Técnica Federico Santa María, Valparaíso 2390123, Chile; (M.P.); (C.K.); (K.B.); (S.V.); (C.R.)
| | - Silvana Valdivia
- Departamento de Ingeniería Química y Ambiental, Universidad Técnica Federico Santa María, Valparaíso 2390123, Chile; (M.P.); (C.K.); (K.B.); (S.V.); (C.R.)
| | - Pedro Valencia
- Centro de Biotecnología Daniel Alkalay Lowitt, Universidad Técnica Federico Santa María, Valparaíso 2390136, Chile;
| | - Cristian Ramírez
- Departamento de Ingeniería Química y Ambiental, Universidad Técnica Federico Santa María, Valparaíso 2390123, Chile; (M.P.); (C.K.); (K.B.); (S.V.); (C.R.)
| | - Sergio Almonacid
- Departamento de Ingeniería Química y Ambiental, Universidad Técnica Federico Santa María, Valparaíso 2390123, Chile; (M.P.); (C.K.); (K.B.); (S.V.); (C.R.)
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Cieniawska B, Komarnicki P, Samelski M, Barć M. Effect of Calcium Foliar Spray Technique on Mechanical Properties of Strawberries. PLANTS (BASEL, SWITZERLAND) 2023; 12:2390. [PMID: 37446951 DOI: 10.3390/plants12132390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/14/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023]
Abstract
The calcium fertilization of strawberry plants (Fragaria × ananassa Duchesne) was evaluated using two types of nozzles, with two liquid pressure levels and two driving speeds. The calcium content of the leaves and fruit were analyzed via flame photometry. Higher leaf calcium content was found in plots sprayed with standard nozzles, while higher fruit calcium content was observed for those sprayed with air induction nozzles. The fruit quality was assessed by determining the basic physical and mechanical properties, using uniaxial compression tests integrated with surface pressure measurements. Different spraying techniques influenced the mechanical resistance of the fruit. A spraying speed of 5 km/h and an operating pressure of 0.4 MPa significantly increased the firmness of the fruit by ~66%, the critical load level by 36%, and the maximum surface pressure by up to 38%, but did not increase the geometrical parameters of the strawberries. Regular foliar feeding during harvest could improve the mechanical strength of strawberries. An appropriate spraying technique with a calcium agent could effectively improve the mechanical properties of the delicate fruit, which is particularly important for limiting losses during harvesting, transportation, and storage.
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Affiliation(s)
- Beata Cieniawska
- Institute of Agricultural Engineering, The Faculty of Life Sciences and Technology, Wrocław University of Environmental and Life Sciences, 50-375 Wrocław, Poland
| | - Piotr Komarnicki
- Institute of Agricultural Engineering, The Faculty of Life Sciences and Technology, Wrocław University of Environmental and Life Sciences, 50-375 Wrocław, Poland
| | - Maciej Samelski
- The Faculty of Life Sciences and Technology, Wrocław University of Environmental and Life Sciences, 50-375 Wrocław, Poland
| | - Marek Barć
- The Faculty of Life Sciences and Technology, Wrocław University of Environmental and Life Sciences, 50-375 Wrocław, Poland
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Ansar A, Ahmad Yahaya AN, Kamil AA, Sabani R, Murad M, Aisyah S. A new innovative breakthrough in the production of salt from bittern using a spray dryer. Heliyon 2022; 8:e11060. [PMID: 36281398 PMCID: PMC9586900 DOI: 10.1016/j.heliyon.2022.e11060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/19/2022] [Accepted: 10/07/2022] [Indexed: 01/10/2023] Open
Abstract
Spray dryer had long been used to dry liquid materials and produce dry crystalline products. However, the drying of the bittern to produce quality salt crystals has not been widely published. Therefore, the purpose of this study was to examine the effect of drying conditions of the bittern using a spray dryer to produce salt with a high natrium chloride (NaCl) content. Drying was carried out in the hot air temperature (105-125 °C), drying air flow rate (25-45 ml/min), feed flow rate (20-30 ml/min), and concentration of maltodextrin (10-30%). The parameters were observed water content, NaCl content, yield, and mean particle diameter size (MPDS). The results showed that the inlet air temperature of 125 °C can significantly reduce the water content faster and produce higher NaCl levels than the inlet air temperature of 105 °C. The salt crystals produced at higher maltodextrin concentrations have lower water content and high NaCl content. The best-operating conditions are at a hot air temperature of 125 °C, a drying airflow rate of 45 m/s, and a maltodextrin concentration of 25% because it produces salt crystals with high NaCl content. Overall, these results indicate that the bittern can be dried using a spray dryer with potential NaCl content as a raw material for the pharmaceutical industry.
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Affiliation(s)
- Ansar Ansar
- Department of Agricultural Engineering, Faculty of Food Technology and Agroindustry University of Mataram, Mataram, Indonesia,Corresponding author.
| | - Ahmad Naim Ahmad Yahaya
- Malaysian Institute of Chemical and Bioengineering Technology, University of Kuala Lumpur, Alor Gajah 78000, Melaka, Malaysia,Corresponding author.
| | - Anton Abdulbasah Kamil
- Faculty of Economics, Administrative and Social Sciences, University of Istanbul Gelisim, Turkey
| | - Rahmat Sabani
- Department of Agricultural Engineering, Faculty of Food Technology and Agroindustry University of Mataram, Mataram, Indonesia
| | - Murad Murad
- Department of Agricultural Engineering, Faculty of Food Technology and Agroindustry University of Mataram, Mataram, Indonesia
| | - Siti Aisyah
- Department of Graphic Engineering, Creative Media State Polytechnic, Indonesia
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Ezzat MI, Issa MY, Sallam IE, Zaafar D, Khalil HMA, Mousa MR, Sabry D, Gawish AY, Elghandour AH, Mohsen E. Impact of different processing methods on the phenolics and neuroprotective activity of Fragaria ananassa Duch. extracts in a D-galactose and aluminum chloride-induced rat model of aging. Food Funct 2022; 13:7794-7812. [PMID: 35766389 DOI: 10.1039/d2fo00645f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2023]
Abstract
Age-related diseases, including dementia, are a major health concern affecting daily human life. Strawberry (Fragaria ananassa Duch.) is the most eaten fruit worldwide due to its exceptional aroma and flavor. However, it's rapid softening and decay limit its shelf-life. Freezing and boiling represent the well-known conservation methods to extend its shelf-life. Therefore, we aimed to discover the phytochemical content differences of fresh and processed strawberries associated with investigating and comparing their neuroprotective effects in a rat model of aging. Female Wistar rats were orally pretreated with fresh, boiled, and frozen F. ananassa methanolic extracts (250 mg kg-1) for 2 weeks, and then these extracts were concomitantly exposed to D-galactose [65 mg kg-1, subcutaneously (S/C)] and AlCl3 (200 mg kg-1, orally) for 6 weeks to develop aging-like symptoms. The results of UPLC/ESI-MS phytochemical profiling revealed 36 secondary metabolites, including phenolics, flavonoids, and their glycoside derivatives. Compared with boiled and frozen extracts, the fresh extract ameliorated the behavioral deficits including anxiety and cognitive dysfunction, upregulated brain HO-1 and Nrf2 levels, and markedly reduced caspase-3 and PPAR-γ levels. Moreover, LDH and miRNA-9, 124 and 132 protein expressions were reduced. The histological architecture of the brain hippocampus was restored and glial fibrillary acidic protein (GFAP) immunoexpression was downregulated. In conclusion, the fresh extract has neuroprotective activity that could have a promising role in ameliorating age-related neurodegeneration.
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Affiliation(s)
- Marwa I Ezzat
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo, 11562, Egypt.
| | - Marwa Y Issa
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo, 11562, Egypt.
| | - Ibrahim E Sallam
- Pharmacognosy Department, College of Pharmacy, October University for Modern Sciences and Arts (MSA), 6th of October City, 12566, Egypt
| | - Dalia Zaafar
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Modern University for Technology and Information, el-Mokattam, Cairo, 11581, Egypt
| | - Heba M A Khalil
- Veterinary Hygiene and Management Department, Faculty of Vet. Medicine, Cairo University, Giza, 12211, Egypt
| | - Mohamed R Mousa
- Pathology Department, Faculty of Vet. Medicine, Cairo University, Giza, 12211, Egypt
| | - Dina Sabry
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, 11562, Egypt
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Badr University, 11829, Egypt
| | - Aya Y Gawish
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Modern University for Technology and Information, el-Mokattam, Cairo, 11581, Egypt
| | - Ahmed H Elghandour
- Communication Department, Military Technical College, Cairo, 11766, Egypt
| | - Engy Mohsen
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo, 11562, Egypt.
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Liu Y, Huang Y, Liu J, Liu J. A temperature-responsive selenium nanohydrogel for strawberry grey mould management. J Mater Chem B 2022; 10:5231-5241. [PMID: 35748407 DOI: 10.1039/d2tb00345g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Grey mould is a fungal disease caused by Botrytis cinerea (B. cinerea), which can cause serious damage to a variety of crops. Herein, we developed iprodione (Ipr) reagent-loaded mesoporous selenium nanoparticles (MSe NPs), combined them with low-melting agarose (LA), and obtained a temperature-responsive selenium particle nanogel (Ipr@MSe@LA NPs) using a simple method. Importantly, Ipr@MSe@LA could capture B. cinerea and quickly be softened to realize the controlled release of Ipr, and effectively inhibit and kill B. cinerea. Plate-based antibacterial tests showed that the colony area of the Ipr@MSe@LA NPs was 4.27 cm-2, which was much smaller than that of the control (25 cm-2). In addition, the Ipr@MSe@LA NPs showed good biocompatibility, and they could improve the photosynthetic efficiency of plants and promote plant growth. Measurement of the fluorescence parameters showed that the maximum photochemical efficiency (Fv/Fm) of the plant leaves of the inoculated group (B. cinerea) is 0.58, but the Fv/Fm value of the Ipr@MSe@LA group is higher than 0.8. In particular, Ipr@MSe@LA NPs could prolong the storage time of strawberries, thereby preserving their freshness. Overall, Ipr@MSe@LA NPs exhibit excellent effects in terms of controlling strawberry gray mould and prolonging the fruit storage time, and this is expected to become a promising strategy for developing intelligent pesticide formulations.
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Affiliation(s)
- Yanan Liu
- Shenzhen Longhua Maternity and Child Healthcare Hospital, Shenzhen, 518110, China.
| | - Yuqin Huang
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 511436, China.
| | - Jiawei Liu
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 511436, China.
| | - Jie Liu
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 511436, China.
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Effects of High Hydrostatic Pressure Combined with Vacuum-Freeze Drying on the Aroma-Active Compounds in Blended Pumpkin, Mango, and Jujube Juice. Foods 2021; 10:foods10123151. [PMID: 34945702 PMCID: PMC8702150 DOI: 10.3390/foods10123151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/01/2021] [Accepted: 12/09/2021] [Indexed: 11/17/2022] Open
Abstract
A combination process of completely non-thermal processing methods involving high hydrostatic pressure (HHP) and vacuum-freeze drying (VFD) for producing a new snack from fruit and vegetable blends was developed, and the effect of the process on flavor quality was investigated. The HHP-VFD treatment did not significantly reduce volatile compound contents compared to single HHP or VFD. Gas chromatography-olfactometry showed that HHP-VFD raised the contents of floral-like volatile compounds (e.g., β-ionone) compared to the untreated sample. Sensory evaluation analysis confirmed that the overall liking was unchanged after the HHP-VFD treatment. The HHP-VFD combined treatment is effective in maintaining the flavor and extending shelf life, and is convenient for the portability and transportation of ready-to-drink juice.
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E-AlexNet: quality evaluation of strawberry based on machine learning. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-01010-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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