Effect of pre-treatments and drying methods on Moisture percentage of dried Tomato Slices
Published on: 14th August, 2017
OCLC Number/Unique Identifier: 7286355298
A study was undertaken the effect of pretreatments and drying methods on quality parameters of tomato slices with respect to storage using two factors as treatments i.e. 5 pre-treatment levels (P1-Peeled by hot water dip blanching, P2-Peeled by hot brine dip blanching, P3-Unpeeled by hot water blanching, P4-Unpeeled by hot brine blanching, P5-Control- No peeled and no blanched) and 2 drying methods i.e. (D1-Tray drying, D2-Sun drying) with completely randomized design of factorial concept with three repetitions at Post Graduate Laboratory of Horticulture Department, College of Agriculture, Junagadh Agricultural University, Junagadh. The quality was evaluated on the basis of physicochemical (i.e. drying time (h) and moisture content (%) at 1, 20, 40, 60 and 80th day of storage. Result of study depicts that the pretreatment P2 i.e. peeling of tomato by hot brine dip blanching followed by tray drying (D2) recorded minimum (14.50 h) drying time and the minimum changes in moisture content (4.00%-6.54%) observed in treatment P1 at 1st to 80th day of storage, respectively.
Effect of drying methods on the physicochemical properties and Fatty Acid composition of Moringa Seeds Oil
Published on: 30th August, 2017
OCLC Number/Unique Identifier: 7286350676
Effect of drying methods (sun-drying and cabinet oven drying) on the physicochemical properties and fatty acid composition of oils extracted from moringa seeds was investigated. Oil from the seeds was extracted using solvent (hexane) after drying. Drying increased the yield from 30.30-33.11%. The oil samples were less dense than water with specific gravities of 0.9032, 0.9075 and 0.9030 respectively. A significant difference exists in the moisture contents (0.11-0.21%); smoke point (202-2250C), flash point (310-3170C) and fire point (360-3690C). Sun-drying and cabinet oven drying brought about a decrease in the acid value (1.80-1.08mgKOH/g), saponification value (174.87-105mgKOH/g), Iodine value (16.10-13.90wijs) and peroxide value (11.24-2.3-Meq/kg). The decrease is an indication of quality improvement of the oils. More unsaturated fatty acids were present in the samples between 76.61% and 81.66%. Oleic acid was predominant (44.92% raw, 45.71% sundried and 43.60% cabinet oven dried). Sun-drying and cabinet oven drying did not have much significant effect on the physical, chemical and fatty acid compositions of the oil. The results obtained from this study showed that the three oil samples are good as edible oil and for commercial purpose.
Effect of Pre-Treatments and Drying Methods on the Chemical Quality and Microbial Density of Wild Edible Oyster Mushroom
Published on: 31st August, 2017
OCLC Number/Unique Identifier: 7286430436
This study was carried out to evaluate the effect of pretreatments and drying methods on the chemical quality and microbial density of wild edible oyster mushroom. The mushroom samples were pretreated by steeping in 0.5% citric and sodium metabisulphite at room temperature for 10 minutes before being subjected to sun and cabinet drying until a constant weight was reached. The dried samples including the control samples (Samples not pretreated with chemicals) were evaluated for proximate, mineral composition and microbial density. The proximate analysis (protein, ash, fat, moisture and fibre) showed that untreated mushroom samples (both sun and cabinet dried) had the overall best results followed by samples pretreated with 0.5% sodium metabisulphite while samples pretreated with 0.5% citric acid had the lowest values. The mineral analysis (calcium, sodium, magnesium and potassium) of the mushroom samples followed the same trend as the proximate analysis. The microbial density of the samples showed that samples pretreated with 0.5% citric acid had the lowest count followed by samples pretreated with 0.5% sodium metabisulphite while the untreated samples had the highest microbial density. This implies that pretreatment with citric acid and sodium metabisulphite reduced the microbial density which may invariably extend the storage life of the edible oyster mushroom.
Pretreatments, dehydration methods and packaging materials: effects on the nutritional quality of tomato powder: a review
Published on: 13th October, 2022
Pretreatments and drying are commonly used before drying tomatoes to inactivate enzymes, improve the drying process, and improve the quality of dried tomato powders. In this review, the effects of different pretreatments (osmotic solutions), dehydration methods, and packaging materials on the quality attributes of tomato powder were summarized. These include pretreatments and osmotic agent solutions (potassium metabisulfite, calcium chloride, sodium metabisulphite, ascorbic acid, citric acid, sodium chloride, and sodium benzoate), thermal blanching (steam blanching and hot water) and non-thermal-processes-like-freezing, sulfuring, etc. and drying methods (oven, sun, and indirect solar dryer). The tomato powders were dried to preserve, store, and transport them. Drying implies not only physical changes, which the consumer can easily detect through visual inspection but also chemical modifications. These are responsible for alterations in color, flavor, and nutritional value, which compromise the overall quality of the final tomato powder. Maximum lycopene, vitamin A, and C contents were found in freeze-dried and direct sundried than samples dried using other methods at low drying temperatures. Freeze driers showed in keeping the nutritional quality of tomato powder with a combination of different pretreatments. Different pretreatments including osmotic agent solutions have their own merits and demerits for the final tomato powder. To overcome the drawbacks of nutritional quality, non-thermal pretreatment categories may be a better alternative to thermal blanching, and more fundamental research is required for better design and scale-up.
Search by University/Institution
Enter your University/Institution to find colleagues at HSPI.
Ensuring author's satisfaction with
- Friendly and hassle-free publication process
- Less production time of articles
- Constructive peer-review
- Enhancing journal reputation
- Regular feedback system
- Quick response to authors' queries
Most Viewed Keywords
- Constructive resonance
- Paraffin-wax
- Correctional psychologists
- Splenic cyst
- Radiology
- Atrial fibrillation ablation
- MLL-1
- Child neglect
- Human enhancement
- Agranulocytosis
- Antibiotic resistance
- Extra blood purification therapies
- Erythrocyte
- Thyroid
- Varicella
- Bioactive
- Huntington’s disease
- Median arcuate ligament syndrome
- Hemodialysis
- Cracked tooth
Search Articles by Country
Get all latest articles in all Heighten Science Publications Inc journals by country.
Testmonials
This is to specify that I have had an extensive and detailed interaction with the Editorial team of Annals of Clinical Gastroenterology and Hepatology, USA, lasting over a significant period of time. My interaction has been extremely pleasant, especially with Ms Allie Smith, as I find the communication quite inspiring and crystal clear. The attitude of aforesaid individuals is quite helpful and guiding in pertinent instances. It has been a commemorative journey so far working with the Journal and I hope that the symbiosis will continue, evolve and flourish in the forthcoming years. I wish the journal, related personnel and aforementioned individuals a fruitful, successful run.
New Delhi, India
Anubha Bajaj
Archives of Vascular Medicine is one of the top class journal for vascular medicine with highly interesting topics. You did a professional and great Job!
Elias Noory
Thank you and your company for effective support of authors which are very much dependable on the funds gambling for science in the different countries of our huge and unpredictable world. We are doing our work and should rely on a teams like Galley Proof-HSPC. Great success to all of you for the 2019th! Be well all the year long.
Russia
Victor V Apollonov
Publishing with the International Journal of Clinical and Experimental Ophthalmology was a rewarding experience as review process was thorough and brisk. Their visibility online is second to none as their published articles appear in all search engines. I will encourage researchers to publish with them.
Elizabeth Awoyesuku
Congratulations for the excellence of your journal and high quality of its publications.
Angel MARTIN CASTELLANOS
Many thanks for publishing my article in your great journal and the friendly and hassle-free publication process, the constructive peer-review, the regular feedback system, and the Quick response to any queries.
Azab Elsayed Azab
“The choice to submit the forensic case study to the Journal of Addiction Therapy and Research was dictated by the match between the content and the potential readership. The publication process proved to be expedient and we were provided with constructive feedback from reviewers. The final article layout is attractive and conforms to standards. All-in-all, it has been a rewarding process.”
Ph.D, Boston University Department of Communication Sciences and Disorders and Knowledge Research Institute, Inc., 2131 Reflection Bay Drive, Arlington, Texas 76013, USA
Elisabeth H. Wiig
"This is my first time publishing with the journal/publisher. I am impressed at the promptness of the publishing staff and the professionalism displayed. Thank you for encouraging young researchers like me!"
Ekiti State University, Nigeria
Adebukola Ajite
It was a real pleasure working with your team. The review was done fast, and it was very clear, the editing was flawless, the article was published quickly compared to other journals, and everyone was understanding and helpful. I will gladly recommend this journal to my acquaintances in academia.
Alexandra Cozma
The Clinical Journal of Obstetrics and Gynecology is an open access journal focused on scientific knowledge publication with emphasis laid on the fields of Gynecology and Obstetrics. Their services toward us have been encouraging through their kindness and respect. Great consideration has been given to us as young budding researchers and we are very grateful for this.
Carole Assontsa
