scholarly journals Antioxidant properties and production of monacolin k, citrinin, and red pigments during solid state fermentation of purple rice (Oryzae sativa) varieties by Monascus purpureus

2017 ◽  
Vol 35 (No. 1) ◽  
pp. 32-39 ◽  
Author(s):  
Pengnoi Prodpran ◽  
Mahawan Rapeepun ◽  
Khanongnuch Chartchai ◽  
Lumyong Saisamorn

This study aims to evaluate the effects of various purple rice varieties on the production of monacolin K, citrinin, and red pigments by Monascus purpureus CMU002U (UV-mutant strain) and their antioxidant properties. The lowest value of citrinin concentration (132 ppb) was found in the SSF of the Na variety, which passed the standards of Japan, Taiwan, and European Union. The high monacolin K (13 482 ppm) and red pigment (388.25 units/g) levels were obtained from the fermented Doi Muser variety. The lowest IC<sub>50 </sub>value of the DPPH assay was found in the extract of fermented Doi Saked variety. An investigation of temperature shifting of the SSF for the Doi Muser variety indicated that the incubation at 30°C for 5 days, followed by 25°C until 30 days, yielded the highest value of monacolin K (35 292 ppm) production. These results demonstrated that fermented purple rice has a high potential to be developed as a new food supplement.

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4518
Author(s):  
Raquel Sousa ◽  
Artur Figueirinha ◽  
Maria Teresa Batista ◽  
Maria Eugénia Pina

Cymbopogon citratus DC (Stapf.) is a perennial grass and it is distributed around the world. It is used as a condiment for food and beverage flavouring in the form of infusions and decoctions of its dried leaves. Our previous studies have shown antioxidant, anti-inflammatory and gastroprotective activities for the infusion and its phenolic fractions. The aim of the present work was to develop oral dosage forms from a Cymbopogon citratus extract to be used as a functional food with antioxidant properties. Initially, an essential oil-free infusion was prepared, lyophilized and characterized by HPLC-PDA. Total phenols were quantified with the Folin–Ciocalteu method and the antioxidant activity was assessed by DPPH assay. Gelatine capsules containing the extract with different excipients, selected after DSC and IR trials, were prepared. A formulation exhibiting better antioxidant behaviour in a gastric environment was attained. These results suggest that the proposed formulation for this extract could be a valuable antioxidant product and, consequently, make an important contribution to “preventing” and minimizing diseases related to oxidative stress conditions.


2017 ◽  
Vol Volume 11 ◽  
pp. 1585-1592 ◽  
Author(s):  
Sergio D'Addato ◽  
Luciana Scandiani ◽  
Giuliana Mombelli ◽  
Francesca Focanti ◽  
Federica Pelacchi ◽  
...  

2011 ◽  
Vol 44 (4) ◽  
pp. 377-382 ◽  
Author(s):  
Jia-Long Sun ◽  
Xiao Zou ◽  
Ai-Ying Liu ◽  
Tang-Fu Xiao

2018 ◽  
Vol 99 (2) ◽  
pp. 109-118 ◽  
Author(s):  
Apinun Kanpiengjai ◽  
Rapeepun Mahawan ◽  
Prodpran Pengnoi ◽  
Saisamorn Lumyong ◽  
Chartchai Khanongnuch

2019 ◽  
Vol 14 (12) ◽  
pp. 1934578X1989409
Author(s):  
Sunil H. Koli ◽  
Rahul K. Suryawanshi ◽  
Bhavana V. Mohite ◽  
Satish V. Patil

Red and yellow pigments from Monascus purpureus (NMCC-PF01) were evaluated to enhance sun protection factor (SPF) of commercial sunscreens and Aloe vera extract. The extracted Monascus pigments contain rubropunctamine (red pigment) and the mixture of monascin and ankaflavin (yellow pigment) as major components. Antioxidant activity and in-vitro safety of the pigments were assessed by ferric reduction potential and DPPH radical scavenging assays, human keratinocytes (HaCaT), and erythrocytes (RBCs) cytotoxicity assay, respectively. In results, SPF of commercial sunscreens showed an increase of 36.5% with red pigment compared to the 13% increase by yellow pigment. The in-vitro studies showed 67.6% ferric reducing potential and 27% DPPH radical scavenging activity, neither cytotoxic effect against human keratinocytes nor haemolytic activity. These results confirmed the safe nature of the Monascus pigments; however, in-vivo studies merit further research. In conclusion, screened pigments from Monascus purpureus may act as potential candidates to increase SPF of commercial sunscreen naturally.


2019 ◽  
Author(s):  
Zhanxia Liu ◽  
Bin Wang ◽  
Yuchen Zhang ◽  
Lei Jiang ◽  
Chenxi Dai ◽  
...  

2019 ◽  
Vol 37 (No. 1) ◽  
pp. 75-80 ◽  
Author(s):  
Pramuan Saithong ◽  
Wanida Tewaruth Chitisankul ◽  
Supachi Nitipan

Growth pigments and metabolites of monacolin K and citrinin were compared for Monascus purpureus during 14-day solid-state ermentation on white rice and brown rice (Chai-Nart cultivar). Monascus purpureus IFRPD 4046 was selected as the target strain which produced the  ighesth monacolin K content and the lowest citrinin content. Optimum fermentation conditions regarding moisture content, temperature and fermentation time were determined. A comparative study showed that monacolin K production in white rice was about twice higher than in brown rice. At the optimum conditions, concentrations of monacolin K dried at 55°C to constant weight were 132.98 and 66.48 mg/100 g in white rice and brown rice, respectively while citrinin was not detected. Results revealed that the IFRPD 4046 strain has a potential to produce red yeast rice with higher monacolin K in white rice than<br />in brown rice with low citrinin content.


2020 ◽  
Vol 6 (4) ◽  
pp. 375
Author(s):  
Juliana Lebeau ◽  
Thomas Petit ◽  
Mireille Fouillaud ◽  
Laurent Dufossé ◽  
Yanis Caro

Demand for microbial colorants is now becoming a competitive research topic for food, cosmetics and pharmaceutics industries. In most applications, the pigments of interest such as polyketide-based red pigments from fungal submerged cultures are extracted by conventional liquid–liquid extraction methods requiring large volumes of various organic solvents and time. To address this question from a different angle, we proposed, here, to investigate the use of three different aqueous two-phase extraction systems using either ammonium- or imidazolium-based ionic liquids. We applied these to four fermentation broths of Talaromyces albobiverticillius (deep red pigment producer), Emericella purpurea (red pigment producer), Paecilomyces marquandii (yellow pigment producer) and Trichoderma harzianum (yellow-brown pigment producer) to investigate their selective extraction abilities towards the detection of polyketide-based pigments. Our findings led us to conclude that (i) these alternative extraction systems using ionic liquids as greener extractant means worked well for this extraction of colored molecules from the fermentation broths of the filamentous fungi investigated here; (ii) tetrabutylammonium bromide, [N4444]Br-, showed the best pigment extraction ability, with a higher putative affinity for azaphilone red pigments; (iii) the back extraction and recovery of the fungal pigments from ionic liquid phases remained the limiting point of the method under our selected conditions for potential industrial applications. Nevertheless, these alternative extraction procedures appeared to be promising ways for the detection of polyketide-based colorants in the submerged cultures of filamentous fungi.


2019 ◽  
Vol 67 (9) ◽  
pp. 2563-2569 ◽  
Author(s):  
Chan Zhang ◽  
Jian Liang ◽  
Anan Zhang ◽  
Shuai Hao ◽  
Han Zhang ◽  
...  

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