Development of active packaging film from sodium alginate/carboxymethyl cellulose containing shallot waste extracts for anti-browning of fresh-cut produce

Author(s):  
P. Thivya ◽  
Y.K. Bhosale ◽  
S. Anandakumar ◽  
V. Hema ◽  
V.R. Sinija
2019 ◽  
Vol 96 ◽  
pp. 546-554 ◽  
Author(s):  
Junfeng Cheng ◽  
Hualin Wang ◽  
Shaolei Kang ◽  
Li Xia ◽  
Suwei Jiang ◽  
...  

2020 ◽  
Vol 9 (12) ◽  
pp. e7191210799
Author(s):  
Lucas Henrique Maldonado-Silva ◽  
Bianka Rocha Saraiva ◽  
Ana Carolina Pelaes Vital ◽  
Fernando Antônio Anjo ◽  
Rafael Santiago Trautwein ◽  
...  

Fruits and vegetables are an important part of a healthy and balanced diet. Fresh cut fruits consumption is increasing, however keeping the food quality when processed is a challenge for the food industry. When the food is processed, some enzymatic changes can occur, being that enzymatic browning is one of this important degradation suffered by fresh cut apples. One alternative to reduce the enzymatic browning is the use of edible coating with anti browning components as vegetal extracts rich in phenolic compounds. The aim of this paper was characterize Uvaia (Eugenia pyriformis Cambess) leaf extract, evaluate the effect of sodium alginate edible coating formulated with uvaia leaf extract against enzymatic browning in fresh cut apples (cv. Golden Delicious and Royal Gala) during 8 days of storage. Phenolic compounds as chlorogenic acid, caffeic acid and p-coumaric acid were identified in Uvaia methanolic leaf extract. Uvaia aqueous leaf extract presented ABTS IC50 of 0.77 ± 0.002 mg/mL, increasing 40.66% the edible coating antioxidant activity. Uvaia aqueous leaf extract controlled 80% of polyphenol oxidase activity from Golden Delicious apple and edible coating with extract reduced enzymatic browning. Sodium alginate edible coating with Uvaia aqueous leaf extract is an alternative to reduced enzymatic browning of fresh cut apple (cv. Golden Delicious).


Author(s):  
Bianca Boros ◽  
Nathalie Grau ◽  
Adriana Isvoran ◽  
Adina Datcu ◽  
Nicoleta Ianovici ◽  
...  

Sodium alginate (ALG) and sodium carboxymethyl cellulose (CMC) are two polysaccharides that have a wide range of applications which could lead to accidental pollution of the environment, making the assessment of their potential ecotoxicity imperative. The present study assesses the ALG and CMC effects on the growth response of the common duckweed (Lemna minor L.). The results emphasize that both polysaccharides can be classified as practically nontoxic based on their EC50 values, with ALG having a relatively higher toxicity compared to CMC. It was also observed that high doses of 1, 5 and 10 mg mL-1 of the two polysaccharides produced growth inhibitory effects against common duckweed. The toxicity of biopolymers against common duckweed, measured as EC50 values, seems to be correlated to the hydrophobicity of the monomers building the polymer. The EC50 values increase linearly with the increase of water solubility (log S) values and decrease linearly with the lipophilicity (log P) values.


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