Optimization of instant edible films based on dietary fiber processed with dynamic high pressure microfluidization for barrier properties and water solubility

LWT ◽  
2015 ◽  
Vol 60 (1) ◽  
pp. 603-608 ◽  
Author(s):  
Jie Wan ◽  
Chengmei Liu ◽  
Wei Liu ◽  
Zongcai Tu ◽  
Wei Wu ◽  
...  
2015 ◽  
Vol 78 (1) ◽  
pp. 22-30 ◽  
Author(s):  
SHENGFENG PENG ◽  
LIQIANG ZOU ◽  
WEI LIU ◽  
LU GAN ◽  
WEILIN LIU ◽  
...  

Eugenol is a major phenolic component with diverse biological activities. However, it is difficult to formulate into an aqueous solution due to poor water solubility, and this limits its application. In the present study, eugenol nanoliposomes (EN) were prepared by combining the ethanol injection method with the dynamic high-pressure microfluidization method. Good physicochemical characterizations of EN were obtained. The successful encapsulation of eugenol in nanoliposomes was confirmed by Fourier transform infrared spectroscopy. A good storage stability of EN was confirmed by its low variation of average particle diameter and encapsulation efficiency after 8 weeks of storage. No oil drops were found in EN after 8 weeks of storage at 4°C and at room temperature, which suggested that the poor water solubility of eugenol was overcome by nanoliposome encapsulation. Compared with that of eugenol solution, a relatively good sustained release property was observed in EN. The antibacterial activity of EN against four common foodborne pathogenic bacteria (Staphylococcus aureus, Escherichia coli, Salmonella enterica serovar Typhimurium, and Listeria monocytogenes) was evaluated in both Luria broth and milk medium.


2020 ◽  
Vol 100 ◽  
pp. 223-234 ◽  
Author(s):  
Xiaojuan Guo ◽  
Mingshun Chen ◽  
Yuting Li ◽  
Taotao Dai ◽  
Xixiang Shuai ◽  
...  

Polymers ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1410 ◽  
Author(s):  
Cheng-Mei Liu ◽  
Lu Liang ◽  
Xi-Xiang Shuai ◽  
Rui-Hong Liang ◽  
Jun Chen

We previously reported that dynamic high-pressure microfluidization (DHPM) can degrade pectin in aqueous solution. In this study, we further investigated the effect of DHPM on pectin in water-ethanol systems. In the absence of DHPM treatment, it was found that pectin exhibited increased average particle size and unchanged average molecular weight, but a decline in reducing-sugar-ends content with the increase of ethanol concentrations (0–10% v/v). These results indicated that the addition of ethanol induced aggregation of pectin. During DHPM treatment, pectin underwent disaggregation and degradation under all measured ethanol concentrations. Disaggregation was enhanced but degradation was weakened with the increase of ethanol concentration. FT-IR and UV spectra indicated that demethylation but no β-elimination occurred in the water-ethanol system during DHPM. Finally, the mechanism of DHPM-induced disaggregation and degradation of pectin under a water-ethanol system was updated. This work may help us to find a suitable condition for reducing the degradation of pectin during the process of homogenization.


Coatings ◽  
2017 ◽  
Vol 7 (11) ◽  
pp. 183 ◽  
Author(s):  
Thi Cao ◽  
So-Young Yang ◽  
Kyung Song

In this study, barnyard millet starch (BMS) was used to prepare edible films. Antioxidant activity was conferred to the BMS film by incorporating borage seed oil (BO). The physical, optical, and thermal properties as well as antioxidant activities of the films were evaluated. The incorporation of BO into the BMS films decreased the tensile strength from 9.46 to 4.69 MPa and increased the elongation at break of the films from 82.49% to 103.87%. Water vapor permeability, water solubility, and moisture content of the BMS films decreased with increasing BO concentration, whereas Hunter b value and opacity increased, L and a values of the films decreased. The BMS films containing BO exhibited antioxidant activity that increased proportionally with increased BO concentration. In particular, the BMS film with 1.0% BO exhibited the highest antioxidant activity and light barrier properties among the BMS films. Therefore, the BMS films with added BO can be used as an antioxidant packaging material.


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