Effects of air‐impingement jet drying on drying kinetics, color, polyphenol compounds, and antioxidant activities of Boletus aereus slices

2021 ◽  
Author(s):  
Qiaoran Zheng ◽  
Xiexin Li ◽  
Tingting Liu ◽  
Yan Zhang ◽  
Jingyi Liu ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Drying Kinetics ◽  
Polyphenol Compounds ◽  
Impingement Jet ◽  
Air Impingement ◽  
Boletus Aereus

Drying kinetics and quality of Monukka seedless grapes dried in an air-impingement jet dryer

2010 ◽  
Vol 105 (2) ◽  
pp. 233-240 ◽  
Author(s):  
Hong-Wei Xiao ◽  
Chang-Le Pang ◽  
Li-Hong Wang ◽  
Jun-Wen Bai ◽  
Wen-Xia Yang ◽  
...  
Keyword(s):  
Drying Kinetics ◽  
Impingement Jet ◽  
Air Impingement ◽  
Seedless Grapes

Effects of Air-Impingement Jet Drying on Drying Kinetics, Nutrient Retention and Rehydration Characteristics of Onion (Allium cepa) Slices

2015 ◽  
Vol 11 (3) ◽  
pp. 435-446
Author(s):  
Wenfeng Li ◽  
Moyi Wang ◽  
Xulin Xiao ◽  
Baoshan Zhang ◽  
Xingbin Yang
Keyword(s):  
Effective Diffusivity ◽  
Nutrient Retention ◽  
Ascorbic Acid Content ◽  
Drying Kinetics ◽  
Total Phenolic ◽  
Rehydration Ratio ◽  
Drying Time ◽  
Impingement Jet ◽  
Air Impingement

Abstract This study is designed to investigate drying kinetics, nutrient retention and rehydration ratio of onion slices under air-impingement jet drying (AIJD) with different drying temperatures (40, 50 and 60°C), air velocities (11, 12 and 13 m/s), and the distance between jet nozzles and material box (0, 40 and 80 mm). Additionally, the influence of AIJD and hot air drying (HAD) on drying efficiency and product quality of onion slices was comparatively investigated. It was found that the moisture effective diffusivity of onion slices under AIJD ranged from 3.51 × 10−10 to 5.51 × 10−10 m2/s, and the activation energy (E a) of onion determined from Arrhenius equation was 14.73 kJ/mol, and ascorbic acid content (AAC), total phenolic content (TPC) and DPPH (1,1-diphenyl-2-picrylhydrazyl) scavenging activity (DSA) significantly decreased in the dried onions compared to that in fresh onion. In addition, the results suggest that the Modified Page model provides the best fit for AIJD curves. Furthermore, AIJD product is better than HAD both in decreasing drying time and enhancing drying rate, AAC, TPC, DSA and rehydration ratio. Accordingly, the AIJD method has advantages in drying time and quality of products, indicating that this technology can be widely applied to food drying process.

COMPUTATIONAL STUDY OF DIFFERENT TURBULENCE MODELS FOR AIR IMPINGEMENT JET INTO MAIN AIR CROSS STREAM

2019 ◽  
Vol 46 (5) ◽  
pp. 459-475
Author(s):  
Abd Elnaby Kabeel ◽  
Medhat Elkelawy ◽  
Hagar Alm El-Din ◽  
Ahmed Mohammed El-Banna ◽  
Ravishankar Sathyamurthy ◽  
...  
Keyword(s):  
Computational Study ◽  
Turbulence Models ◽  
Impingement Jet ◽  
Air Impingement

Hot air impingement drying kinetics and quality attributes of orange peel

2019 ◽  
Vol 44 (1) ◽  
Author(s):  
Li‐Zhen Deng ◽  
Arun S. Mujumdar ◽  
Wen‐Xia Yang ◽  
Qian Zhang ◽  
Zhi‐An Zheng ◽  
...  
Keyword(s):  
Orange Peel ◽  
Quality Attributes ◽  
Drying Kinetics ◽  
Hot Air ◽  
Air Impingement

scholarly journals Chemical Composition, Nutritional Functions, and Antioxidant Activities of Honeys in Africa

2019 ◽  
Vol 63 (2) ◽  
pp. 179-200
Author(s):  
Haroon Elrasheid Tahir ◽  
Abdalbasit A. Mariod ◽  
Gusta Mahunu ◽  
Zou Xiaobo
Keyword(s):  
Amino Acids ◽  
Rural Communities ◽  
Nutritional Value ◽  
Antioxidant Activities ◽  
Folk Medicine ◽  
Economic Sustainability ◽  
Polyphenol Compounds ◽  
Positive Effects ◽  
Honey Production ◽  
Total Amino Acids

AbstractHoney production in Africa is considered an integral part of folk medicine and provides an opportunity for poor rural communities to increase their economic sustainability. In this review, we provide and discuss the data available on the positive nutritional value and health properties of honey harvested from Africa. Besides sugar, honey contains protein and amino acids, with proline which is about 50% of the total amino acids, vitamins, enzymes, some minerals (Na, K, Mg, Ca, Zn, Cu, Mn, Fe, P, S), trace elements (Mn, Ni, Li, F, I, Cl, Sr, Co) and polyphenol compounds. The paper reviewed studies on the use of African honey with anti-inflammatory, antioxidant, antibacterial, antifungal, anti-breast cancer, antidiabetic and antimycotic properties and also its positive effects on infertility (asthenozoospermia), febrile neutropenia and diabetic foot ulcers.

scholarly journals Antidiabetic and Antioxidant Activities of Bay, Pandan, Citrus Leaves and Their Combination in Vitro

2019 ◽  
Vol 12 (2) ◽  
pp. 833-841
Author(s):  
Samsu U. Nurdin ◽  
Devi Sabarina ◽  
Subeki Subeki ◽  
Sussi Astuti
Keyword(s):  
Antioxidant Activity ◽  
Enzyme Inhibition ◽  
Antioxidant Activities ◽  
Total Phenolic ◽  
Diabetic Patients ◽  
Leaf Extracts ◽  
Polyphenol Compounds ◽  
Citrus Leaves

The study aimed to evaluate the effects of bay (B), pandan (P), citrus leaves (C) and their combinations against starch hydrolysis enzymes (α-glucosidase and α-amylase enzymes) and antioxidant activity and to examine the role of polyphenol compounds in enzyme inhibition and antioxidant activity. Three single leaves extracts and five of their combinations were applied to inhibit α-glucosidase hydrolyzing p-nitrophenyl-α-D-glucopyranosyde or α-amylase hydrolyzing starch solution as well as to scavenge free radicals. The leaf extracts and their combination showed inhibition activities against α-glucosidase and α-amylase enzymes with range of inhibition activities were between 17.63% to 26.04% and 20.14% to 35.30% respectively. There is no significantly differ among the extracts in modulation of α-glucosidase activity, but each extract exhibited different effect on α-amylase or antioxidant activities. Mixing P with B and C increases the inhibitory activity of the extract against α-amylase as seen that percent of inhibition of BPC is significantly higher than P, eventhough their total phenolic content was not different. The synergism or antagonism effect was not observed when the extracts were combined as the enzyme inhibition or antioxidant activities are not depend on the proportion of the extract in the mixtures. The role of polyphenol compounds on inhibition of the starch digestion enzymes and on antioxidant activity was not observed. Further study is required to fully elucidate the effect of the leaf or their combinations on diabetic animal models or diabetic patients.

Production of high sensory quality Shiitake mushroom (Lentinus edodes) by pulsed air-impingement jet drying (AID) technique

2021 ◽  
Vol 341 ◽  
pp. 128290
Author(s):  
Dongsheng Luo ◽  
Jihong Wu ◽  
Zhuo Ma ◽  
Peipei Tang ◽  
Xiaojun Liao ◽  
...  
Keyword(s):  
Sensory Quality ◽  
Lentinus Edodes ◽  
Shiitake Mushroom ◽  
Impingement Jet ◽  
Air Impingement
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