scholarly journals Effect of Pretreatment Processes on Biogenic Amines Content and Some Bioactive Compounds in Hericium erinaceus Extract

Foods ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 996
Author(s):  
Netnapa Makhamrueang ◽  
Sasithorn Sirilun ◽  
Jakkapan Sirithunyalug ◽  
Wantida Chaiyana ◽  
Wiwat Wangcharoen ◽  
...  
Keyword(s):  
Biogenic Amines ◽  
Bioactive Compounds ◽  
Good Choice ◽  
Heating Process ◽  
Hot Air Drying ◽  
Air Drying ◽  
Important Indicator ◽  
Hericium Erinaceus ◽  
Hot Air ◽  
Pretreatment Processes

Hericium erinaceus is reported as a source of several nutritional contents and bioactive compounds, especially β-glucan. However, various uncontrolled processes lead to the formation of byproducts that can affect human health, including biogenic amines. These amines are concerning, because their presence is an important indicator of the process of hygiene and food spoilage or quality. A better understanding of various pretreatment processes can control the content of biogenic amines. In this work, we studied the effect of pretreatment processes, i.e., sample size (whole, ripping, and chopping); heating process (non-heating, blanching, and boiling); and drying method (nondrying, hot air drying, and freeze-drying) on biogenic amine contents in H. erinaceus extract. A method of the post-column high-performance liquid chromatography (HPLC) technique was used for the analysis of putrescine (PUT) and spermidine (SPD) in H. erinaceus extract following the acceptable guidelines. In this study, treatment 20 (chopping/non-heating/hot air drying) was suggested as a good choice for the pretreatment process, because low levels of PUT and SPD were shown in the extract while high levels of the bioactive compounds β-glucan and antioxidant activity were presented. This treatment process can be applied to the industry because of its easy operation and cost-saving.

Influence of Ultrasonic Pretreatment with Hot Air Drying on Nutritional Quality and Structural Related Changes in Dried Sweet Potatoes

2019 ◽  
Vol 15 (8) ◽  
Author(s):  
Muhammad Tayyab Rashid ◽  
Haile Ma ◽  
Mushtaque Ahmed Jatoi ◽  
Malik Muhammad Hashim ◽  
Asif Wali ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Great Influence ◽  
The Novel ◽  
Dual Frequency ◽  
Sweet Potatoes ◽  
Hot Air Drying ◽  
Air Drying ◽  
Hot Air ◽  
Phytochemical Compounds

AbstractThe drying of sweet potatoes not only helps to prolong its storage life but the dried form reportedly enriched with high bioactive compounds than regular sweet potatoes. The study aims to investigate the influence of dual-frequency ultrasound pretreatments (40 and 60 kHz) at two different hot air drying temperatures (70 °C and 80 °C) on quality of dried product. Ultrasound pretreatment at 40 kHz with 70 °C maintained the phytochemical compounds in the dried sweet potatoes. Ellagic acid and chlorogenic acid were found as predominant phenolic acids using HPLC analysis, while identification of two new bioactive compounds quercetin-3-rhamnoside and quercetin 3-β-D-glucoside were the novel finding of the current study. A short new band appeared in FTIR in all treatments from 2164 to 2041 cm−1 which refers to C = C alkenes functional group. The multivariate analysis showed a great influence of USH3 and USH1 with a positive relationship with most of bioactive compounds.

Effect of osmotic treatments and drying methods on bioactive compounds in papaya and tomato

RSC Advances ◽  
2015 ◽  
Vol 5 (24) ◽  
pp. 18579-18587 ◽  
Author(s):  
Sirithon Siriamornpun ◽  
Jiranan Ratseewo ◽  
Niwat Kaewseejan ◽  
Naret Meeso
Keyword(s):  
Ferulic Acid ◽  
Bioactive Compounds ◽  
Sinapic Acid ◽  
Drying Methods ◽  
Hot Air Drying ◽  
Air Drying ◽  
Hot Air ◽  
Osmotic Treatment

FIR and hot air drying enhanced lycopene and lutein contents, whereas osmotic treatment preserved sinapic acid and ferulic acid.

scholarly journals Hybrid drying of ultrasound assisted osmotic dehydration (UOAD) and hot air drying of Eucalyptus deglupta

2021 ◽  
Vol 2120 (1) ◽  
pp. 012003
Author(s):  
R Sukumaran ◽  
B L Chua ◽  
N Ismail
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Bioactive Compounds ◽  
Osmotic Dehydration ◽  
Hot Air Drying ◽  
Air Drying ◽  
Constant Weight ◽  
Hot Air ◽  
Ultrasound Assisted ◽  
Drying Conditions

Abstract Eucalyptus deglupta is one of the promising medicinal plants from Mytracea family consisting of bioactive compounds that are to be used in medications. The bioactive compounds present in Eucalyptus deglupta were extracted at the best yield using a hybrid drying method consisting of ultrasound assisted osmotic dehydration (UOAD) and hot air drying in this study. The drying conditions of UAOD were optimised with response surface methodology (RSM) to attain the highest antioxidant activity via of DPPH radical scavenging assay. Four parameters were optimised with response surface methodology, namely concentration of sucrose (v/w), temperature (°C), duration of drying and intensity of ultrasound (%) ranged from 30% to 50%, 20°C to 60°C, 40 min to 100 min and 60% to 100%, respectively. A series of 27 combinations of the UAOD drying conditions were performed and followed by hot air drying performed at 60°C until a constant weight was achieved. A moderate scavenging activity of DPPH assay (56.12%) was achieved at a concentration of sucrose, temperature, duration of drying and intensity of ultrasound of 50%, 40°C, 100 min and 264 W, respectively.

Hot air drying of tea flowers: effect of experimental temperatures on drying kinetics, bioactive compounds and quality attributes

2018 ◽  
Vol 54 (2) ◽  
pp. 526-535 ◽  
Author(s):  
Linzuo Shi ◽  
Yingjie Gu ◽  
Dan Wu ◽  
Xiaoqing Wu ◽  
Donald Grierson ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Quality Attributes ◽  
Drying Kinetics ◽  
Hot Air Drying ◽  
Air Drying ◽  
Hot Air
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