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| Content Provider | Springer Nature Link |
|---|---|
| Author | Ghazala, Imen Sila, Assaad Frikha, Fakher Driss, Dorra Ellouz Chaabouni, Semia Haddar, Anissa |
| Copyright Year | 2015 |
| Abstract | The water soluble crude polysaccharides were obtained from the aqueous extracts of the carrot peels by-product (CWSP) through hot water extraction followed by isopropanol precipitation. Response surface methodology was applied to optimize the extraction of polysaccharides. A three-level, four-variable Box-Behnken design was employed to obtain the best possible combination of extraction time (X1: 60–100 min), ratio of water to raw material (X2: 15:1–25:1, v/w), extraction temperature (X3: 60–80 °C), extraction cycle (X4: 1–3 times) for maximum yield of CWSP. The optimum extraction conditions were as follows: extraction time of 74.86 min, ratio of water to raw material of 24.86, extraction temperature of 60 °C and extraction cycles of 3. Under these conditions, the experimental yield was 41.91 %, which is well in close agreement with the theoretical value (42 %) predicted by RSM model. Antioxidant activities and inhibitory activities against the bacteria of CWSP were investigated. CWSP at 1.2 mg/ml was found to scavenge the DPPH radical (80.21 %), to prevent bleaching of β-carotene (65 %) and to chelate iron ion (40.25 %) in vitro systems. CWSP also exhibited the antibacterial activities. CWSP at 200 mg/ml could inhibit the growth of the Gram-negative and Gram-positive bacteria. CWSP have significant antioxidant and high antibacterial activity and may be potential functional food ingredients. |
| Starting Page | 6953 |
| Ending Page | 6965 |
| Page Count | 13 |
| File Format | |
| ISSN | 00221155 |
| Journal | Journal of Food Science and Technology |
| Volume Number | 52 |
| Issue Number | 11 |
| e-ISSN | 09758402 |
| Language | English |
| Publisher | Springer India |
| Publisher Date | 2015-04-29 |
| Publisher Place | New Delhi |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Antimicrobial Antioxidant Polysaccharides Carrot peels by-products Food Science Nutrition Chemistry/Food Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Food Science |
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