TY  - JOUR
AU  - Milutinović, Milica
AU  - Miladinović, Marija
AU  - Gašić, Uroš
AU  - Dimitrijević-Branković, Suzana
AU  - Rajilić-Stojanović, Mirjana
PY  - 2022
UR  - https://link.springer.com/10.1007/s13399-022-02717-5
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/4967
AB  - Microwave-assisted extraction (MAE) conditions were optimized to improve extract quality of medicinal herb — Hypericum perforatum L. (St. John’s wort) dust. Response surface methodology was applied initially to obtain the highest concentration of total polyphenols in extract solids (MAE-e). St. John’s wort was mixed with 30% ethanol in 50 mL/g solvent to solid ratio, and treated with 170 W microwave power for 40 s to yield an extract with 411.26 ± 6.21 mg GAE/g of polyphenols. This extract contained a significantly higher content of polyphenols (42.50%) and had significantly higher antioxidant activity than the macerate obtained by using European Medicines Agency (EMA) recommended procedure. The advantage of the EMA procedure was the higher yield of extract per gram of plant material. Therefore, another set of MAE conditions was defined to maximize the yield of polyphenols per gram of plant material (MAE-p). The MAE-p extract was produced by using 30% ethanol, 10 mL/g solvent to solid ratio, and 170 W microwave power for 100 s, which was, again, a markedly shorter period than 72 h of maceration. The MAE-p extract had a slightly, but significantly higher yield (5.2%), more polyphenols (8.8%), and improved antioxidant activity compared to the EMA macerate. Antimicrobial activity against several pathogens was stronger for the MAE extracts. The chemical composition of extracts was slightly different and MAE favored extraction of glycosides, in particular, rutin (quercetin-3-O-rutinoside), while the EMA macerate contained quercetin aglycon in the highest concentration. Our study demonstrates that statistically planned experiments allow for significant improvement of the extraction process, which application could facilitate better use of natural resources and deliver more potent extracts than those obtained by currently recommended procedures.
T2  - Biomass Conversion and Biorefinery
T1  - Recovery of bioactive molecules from Hypericum perforatum L. dust using microwave-assisted extraction
DO  - 10.1007/s13399-022-02717-5
ER  - 

@article{
author = "Milutinović, Milica and Miladinović, Marija and Gašić, Uroš and Dimitrijević-Branković, Suzana and Rajilić-Stojanović, Mirjana",
year = "2022",
abstract = "Microwave-assisted extraction (MAE) conditions were optimized to improve extract quality of medicinal herb — Hypericum perforatum L. (St. John’s wort) dust. Response surface methodology was applied initially to obtain the highest concentration of total polyphenols in extract solids (MAE-e). St. John’s wort was mixed with 30% ethanol in 50 mL/g solvent to solid ratio, and treated with 170 W microwave power for 40 s to yield an extract with 411.26 ± 6.21 mg GAE/g of polyphenols. This extract contained a significantly higher content of polyphenols (42.50%) and had significantly higher antioxidant activity than the macerate obtained by using European Medicines Agency (EMA) recommended procedure. The advantage of the EMA procedure was the higher yield of extract per gram of plant material. Therefore, another set of MAE conditions was defined to maximize the yield of polyphenols per gram of plant material (MAE-p). The MAE-p extract was produced by using 30% ethanol, 10 mL/g solvent to solid ratio, and 170 W microwave power for 100 s, which was, again, a markedly shorter period than 72 h of maceration. The MAE-p extract had a slightly, but significantly higher yield (5.2%), more polyphenols (8.8%), and improved antioxidant activity compared to the EMA macerate. Antimicrobial activity against several pathogens was stronger for the MAE extracts. The chemical composition of extracts was slightly different and MAE favored extraction of glycosides, in particular, rutin (quercetin-3-O-rutinoside), while the EMA macerate contained quercetin aglycon in the highest concentration. Our study demonstrates that statistically planned experiments allow for significant improvement of the extraction process, which application could facilitate better use of natural resources and deliver more potent extracts than those obtained by currently recommended procedures.",
journal = "Biomass Conversion and Biorefinery",
title = "Recovery of bioactive molecules from Hypericum perforatum L. dust using microwave-assisted extraction",
doi = "10.1007/s13399-022-02717-5"
}

Milutinović, M., Miladinović, M., Gašić, U., Dimitrijević-Branković, S.,& Rajilić-Stojanović, M.. (2022). Recovery of bioactive molecules from Hypericum perforatum L. dust using microwave-assisted extraction. in Biomass Conversion and Biorefinery.
https://doi.org/10.1007/s13399-022-02717-5

Milutinović M, Miladinović M, Gašić U, Dimitrijević-Branković S, Rajilić-Stojanović M. Recovery of bioactive molecules from Hypericum perforatum L. dust using microwave-assisted extraction. in Biomass Conversion and Biorefinery. 2022;.
doi:10.1007/s13399-022-02717-5 .

Milutinović, Milica, Miladinović, Marija, Gašić, Uroš, Dimitrijević-Branković, Suzana, Rajilić-Stojanović, Mirjana, "Recovery of bioactive molecules from Hypericum perforatum L. dust using microwave-assisted extraction" in Biomass Conversion and Biorefinery (2022),
https://doi.org/10.1007/s13399-022-02717-5 . .

TY  - JOUR
AU  - Mandić, Marija
AU  - Mitić, Katarina
AU  - Nedeljković, Predrag
AU  - Perić, Mina
AU  - Božić, Bojan
AU  - Lunić, Tanja
AU  - Bačić, Ana
AU  - Rajilić-Stojanović, Mirjana
AU  - Peković, Sanja
AU  - Božić Nedeljković, Biljana
PY  - 2022
UR  - https://www.mdpi.com/2072-6643/14/6/1273
UR  - http://www.ncbi.nlm.nih.gov/pubmed/35334928
UR  - http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=PMC8955508
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/4940
AB  - The present study aimed to investigate the neuroprotective effects of the vitamin B complex (B1, B2, B3, B5, B6, and B12-VBC), by studying the changes in the femoral nerve, quadriceps muscle, popliteal lymph nodes and gut microbiota in the rat model of multiple sclerosis, experimental autoimmune encephalomyelitis (EAE). VBC treatment attenuated clinical signs of EAE during the disease, and reduced the duration of EAE thereby contributing to a faster recovery. In VBC-treated EAE rats, a significant decrease in nerve and muscle nuclear density was revealed during the onset period of the disease, while a marked increase was detected at the end of the disease, compared with untreated EAE rats. In the lymph nodes of VBC-treated EAE rats, a fewer number of lymphoid follicles in the cortical area and smaller epithelioid granulomas were detected. The changes in microbiota composition were examined using 16S rRNA gene sequencing and bioinformatics analysis, which revealed the potential of VBC treatment in establishing and/or maintaining gut microbiota homeostasis. Finally, the present study demonstrated that VBC treatment ameliorated the cellular changes in the affected peripheral nerve, muscles innervated by this nerve, and the gut microbiota dysbiosis which occurred during the EAE.
PB  - Basel: MDPI
T2  - Nutrients
T1  - Vitamin B Complex and Experimental Autoimmune Encephalomyelitis -Attenuation of the Clinical Signs and Gut Microbiota Dysbiosis.
IS  - 6
VL  - 14
DO  - 10.3390/nu14061273
SP  - 1273
ER  - 

@article{
author = "Mandić, Marija and Mitić, Katarina and Nedeljković, Predrag and Perić, Mina and Božić, Bojan and Lunić, Tanja and Bačić, Ana and Rajilić-Stojanović, Mirjana and Peković, Sanja and Božić Nedeljković, Biljana",
year = "2022",
abstract = "The present study aimed to investigate the neuroprotective effects of the vitamin B complex (B1, B2, B3, B5, B6, and B12-VBC), by studying the changes in the femoral nerve, quadriceps muscle, popliteal lymph nodes and gut microbiota in the rat model of multiple sclerosis, experimental autoimmune encephalomyelitis (EAE). VBC treatment attenuated clinical signs of EAE during the disease, and reduced the duration of EAE thereby contributing to a faster recovery. In VBC-treated EAE rats, a significant decrease in nerve and muscle nuclear density was revealed during the onset period of the disease, while a marked increase was detected at the end of the disease, compared with untreated EAE rats. In the lymph nodes of VBC-treated EAE rats, a fewer number of lymphoid follicles in the cortical area and smaller epithelioid granulomas were detected. The changes in microbiota composition were examined using 16S rRNA gene sequencing and bioinformatics analysis, which revealed the potential of VBC treatment in establishing and/or maintaining gut microbiota homeostasis. Finally, the present study demonstrated that VBC treatment ameliorated the cellular changes in the affected peripheral nerve, muscles innervated by this nerve, and the gut microbiota dysbiosis which occurred during the EAE.",
publisher = "Basel: MDPI",
journal = "Nutrients",
title = "Vitamin B Complex and Experimental Autoimmune Encephalomyelitis -Attenuation of the Clinical Signs and Gut Microbiota Dysbiosis.",
number = "6",
volume = "14",
doi = "10.3390/nu14061273",
pages = "1273"
}

Mandić, M., Mitić, K., Nedeljković, P., Perić, M., Božić, B., Lunić, T., Bačić, A., Rajilić-Stojanović, M., Peković, S.,& Božić Nedeljković, B.. (2022). Vitamin B Complex and Experimental Autoimmune Encephalomyelitis -Attenuation of the Clinical Signs and Gut Microbiota Dysbiosis.. in Nutrients
Basel: MDPI., 14(6), 1273.
https://doi.org/10.3390/nu14061273

Mandić M, Mitić K, Nedeljković P, Perić M, Božić B, Lunić T, Bačić A, Rajilić-Stojanović M, Peković S, Božić Nedeljković B. Vitamin B Complex and Experimental Autoimmune Encephalomyelitis -Attenuation of the Clinical Signs and Gut Microbiota Dysbiosis.. in Nutrients. 2022;14(6):1273.
doi:10.3390/nu14061273 .

Mandić, Marija, Mitić, Katarina, Nedeljković, Predrag, Perić, Mina, Božić, Bojan, Lunić, Tanja, Bačić, Ana, Rajilić-Stojanović, Mirjana, Peković, Sanja, Božić Nedeljković, Biljana, "Vitamin B Complex and Experimental Autoimmune Encephalomyelitis -Attenuation of the Clinical Signs and Gut Microbiota Dysbiosis." in Nutrients, 14, no. 6 (2022):1273,
https://doi.org/10.3390/nu14061273 . .