Valorization of unexploited artichoke leaves dust for obtaining of extracts rich in natural antioxidants
Само за регистроване кориснике
2021
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
This study has developed an improved and fast microwave-assisted procedure for extraction of high yields of natural antioxidants from artichoke leaves dust. The material is derived as an abundant residue remained after processing for the industrial tea blends preparation, having no commercial value. A key factors for optimization of the total polyphenolic (TPC) and flavonoid content (TFC) and antioxidant activities have been determined by using single factor experiments along with a response surface methodology. The optimal conditions for maximizing the combination of TPC/TFC and antioxidant activity were obtained as follows: ethanol concentration 67.81%, extraction time 50 s, liquid/solid ratio 41.78 mL/g, microwave power 180 W, whereas the corresponding responses resulted in: TPC − 205.59 ± 7.30 mg GAE/g dw, TFC − 79.75 ± 1.12 mg QE/g dw, and FRAP −1008.14 ± 37.15 mmolFe2+/g dw. Only 14.7 µg/mL of the extract concentration is required to inhibit 50% of DPPH free radicals. A comparati...ve study confirmed that the proposed procedure yielded higher TPC, TFC and antioxidant activities than available extraction methods. It highlights a several fold reduced extraction time, caring an eco-friendly principle for obtaining of antioxidants from industrial, medicinal crop residues, which would be further easily valorized in food and pharmaceutical industry.
Кључне речи:
Antioxidants / Artichoke leaves / Flavonoids / Microwave-assisted extraction / Polyphenols / response surface methodology (RSM)Извор:
Separation and Purification Technology, 2021, 256, 117714-Издавач:
- Elsevier, Amsterdam
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200135 (Универзитет у Београду, Технолошко-металуршки факултет) (RS-MESTD-inst-2020-200135)
DOI: 10.1016/j.seppur.2020.117714
ISSN: 1383-5866
PubMed:
WoS: 000674613800002
Scopus: 2-s2.0-85091971525
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Rudić, Suzana AU - Dimitrijević-Branković, Suzana AU - Dimitrijević, Snežana AU - Milić, Marija PY - 2021 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4584 AB - This study has developed an improved and fast microwave-assisted procedure for extraction of high yields of natural antioxidants from artichoke leaves dust. The material is derived as an abundant residue remained after processing for the industrial tea blends preparation, having no commercial value. A key factors for optimization of the total polyphenolic (TPC) and flavonoid content (TFC) and antioxidant activities have been determined by using single factor experiments along with a response surface methodology. The optimal conditions for maximizing the combination of TPC/TFC and antioxidant activity were obtained as follows: ethanol concentration 67.81%, extraction time 50 s, liquid/solid ratio 41.78 mL/g, microwave power 180 W, whereas the corresponding responses resulted in: TPC − 205.59 ± 7.30 mg GAE/g dw, TFC − 79.75 ± 1.12 mg QE/g dw, and FRAP −1008.14 ± 37.15 mmolFe2+/g dw. Only 14.7 µg/mL of the extract concentration is required to inhibit 50% of DPPH free radicals. A comparative study confirmed that the proposed procedure yielded higher TPC, TFC and antioxidant activities than available extraction methods. It highlights a several fold reduced extraction time, caring an eco-friendly principle for obtaining of antioxidants from industrial, medicinal crop residues, which would be further easily valorized in food and pharmaceutical industry. PB - Elsevier, Amsterdam T2 - Separation and Purification Technology T1 - Valorization of unexploited artichoke leaves dust for obtaining of extracts rich in natural antioxidants SP - 117714 VL - 256 DO - 10.1016/j.seppur.2020.117714 ER -
@article{ author = "Rudić, Suzana and Dimitrijević-Branković, Suzana and Dimitrijević, Snežana and Milić, Marija", year = "2021", abstract = "This study has developed an improved and fast microwave-assisted procedure for extraction of high yields of natural antioxidants from artichoke leaves dust. The material is derived as an abundant residue remained after processing for the industrial tea blends preparation, having no commercial value. A key factors for optimization of the total polyphenolic (TPC) and flavonoid content (TFC) and antioxidant activities have been determined by using single factor experiments along with a response surface methodology. The optimal conditions for maximizing the combination of TPC/TFC and antioxidant activity were obtained as follows: ethanol concentration 67.81%, extraction time 50 s, liquid/solid ratio 41.78 mL/g, microwave power 180 W, whereas the corresponding responses resulted in: TPC − 205.59 ± 7.30 mg GAE/g dw, TFC − 79.75 ± 1.12 mg QE/g dw, and FRAP −1008.14 ± 37.15 mmolFe2+/g dw. Only 14.7 µg/mL of the extract concentration is required to inhibit 50% of DPPH free radicals. A comparative study confirmed that the proposed procedure yielded higher TPC, TFC and antioxidant activities than available extraction methods. It highlights a several fold reduced extraction time, caring an eco-friendly principle for obtaining of antioxidants from industrial, medicinal crop residues, which would be further easily valorized in food and pharmaceutical industry.", publisher = "Elsevier, Amsterdam", journal = "Separation and Purification Technology", title = "Valorization of unexploited artichoke leaves dust for obtaining of extracts rich in natural antioxidants", pages = "117714", volume = "256", doi = "10.1016/j.seppur.2020.117714" }
Rudić, S., Dimitrijević-Branković, S., Dimitrijević, S.,& Milić, M.. (2021). Valorization of unexploited artichoke leaves dust for obtaining of extracts rich in natural antioxidants. in Separation and Purification Technology Elsevier, Amsterdam., 256, 117714. https://doi.org/10.1016/j.seppur.2020.117714
Rudić S, Dimitrijević-Branković S, Dimitrijević S, Milić M. Valorization of unexploited artichoke leaves dust for obtaining of extracts rich in natural antioxidants. in Separation and Purification Technology. 2021;256:117714. doi:10.1016/j.seppur.2020.117714 .
Rudić, Suzana, Dimitrijević-Branković, Suzana, Dimitrijević, Snežana, Milić, Marija, "Valorization of unexploited artichoke leaves dust for obtaining of extracts rich in natural antioxidants" in Separation and Purification Technology, 256 (2021):117714, https://doi.org/10.1016/j.seppur.2020.117714 . .