Optimisation of extraction of piceatannol from Rhodomyrtus tomentosa seeds using response surface methodology

Lai, Thi Ngoc Ha; André, Christelle M.; Chirinos, Rosana; Nguyen, Bich Thuy; Larondelle, Yvan; Rogez, Hervé

doi:10.1016/j.seppur.2014.07.032

Cited by 31 publications

(30 citation statements)

References 20 publications

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“…Response surface methodology (RSM) is widely used in food industry and other related fields (Iqbal et al, 2013), especially for extraction of valuable compounds, where interactions exist between processing factors (Cai et al, 2012;Fang et al, 2014;Lai et al, 2014;Tabaraki et al, 2012). For example, in the case of PSP valorization, Ahmed et al (2011) optimized extraction conditions (drying temperature, citric acid concentration, and soaking time) for isolation of anthocyanins and phenolics from PSP using RSM with a face-centred cube design.…”

mentioning

confidence: 99%

Green ultrasound-assisted extraction of anthocyanin and phenolic compounds from purple sweet potato using response surface methodology

Zhu¹,

Guan²,

Guo³

et al. 2016

International Agrophysics

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A b s t r a c t. Response surface methodology was used to optimize experimental conditions for ultrasound-assisted extraction of valuable components (anthocyanins and phenolics) from purple sweet potatoes using water as a solvent. The Box-Behnken design was used for optimizing extraction responses of anthocyanin extraction yield, phenolic extraction yield, and specific energy consumption. Conditions to obtain maximal anthocyanin extraction yield, maximal phenolic extraction yield, and minimal specific energy consumption were different; an overall desirability function was used to search for overall optimal conditions: extraction temperature of 68ºC, ultrasonic treatment time of 52 min, and a liquid/solid ratio of 20. The optimized anthocyanin extraction yield, phenolic extraction yield, and specific energy consumption were 4.91 mg 100 g -1 fresh weight, 3.24 mg g -1 fresh weight, and 2.07 kWh g -1 , respectively, with a desirability of 0.99. This study indicates that ultrasound-assisted extraction should contribute to a green process for valorization of purple sweet potatoes.

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mentioning

confidence: 99%

Green ultrasound-assisted extraction of anthocyanin and phenolic compounds from purple sweet potato using response surface methodology

Zhu¹,

Guan²,

Guo³

et al. 2016

International Agrophysics

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“…Inhibitory zone (mm) induced by plant extracts against AHPND-caused bacterial strains) were mainly identified as phenolic compounds. Based on previous results on phenolic constituents of R. tomentosa [19,21], peaks of R. tomentosa extract profile in our study were further identified as hydrolysable tannins (including Di-HHDP-galloyl-glucose, HHDP-galloyl-glucose, HHDP-digalloyl-glucose, furosin, and HHDP-trigalloyl-glucose) and stilbenes (including astringin, piceatannol, and resveratrol). In chromate profile of A. sativum, we observed that there were two minor peaks represented phenol compounds, while all other peaks, including the major ones, showed the retention times that are different from phenols and remained unknown in this study, due to the lack of our laboratory authentic standards (Table 3).…”

Section: Chromatographic Spectral Characterization and Identificatiomentioning

confidence: 60%

“…P. guajava, P. betle, P. amarus, and A. sativum were extracted by 70% ethanol with 1/10 ratio of plant powder/ethanol. Followed Lai et al [19] recommendation, R. tomentosa was extracted by ethanol 79% with 1/20 ratio of plant powder/ethanol. Solutions were centrifuged at 6,000 rpm for 10 m at 4°C.…”

Section: Plant Materials and Extractionmentioning

confidence: 99%

“…Solutions were centrifuged at 6,000 rpm for 10 m at 4°C. The supernatants were concentrated by a rotatory evaporator at 40°C, and extracts were dried with a lyophilizer before being stored at 4°C until use [19].…”

Section: Plant Materials and Extractionmentioning

confidence: 99%

“…Even R. tomentosa has a long history of application in ethnic medicine [12,13,19,43], its biological and pharmacological properties have not yet been well established, and it is listed as one of 240 "Neglected and Underutilised Crop Sciences" of Vietnam, China, Thailand, and Cambodia by the scientific project "Agrofolio" [44]. The current study highlights R. tomentosa antibacterial effects and safety, recommends it as a promissory candidate to treat AHPND of shrimps, and thus suggests that more research attentions would be justified to verify the therapeutic potential of this plant.…”

Section: Kc12mentioning

confidence: 99%

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Screening Antibacterial Effects of Vietnamese Plant Extracts Against Pathogens Caused Acute Hepatopancreatic Necrosis Disease in Shrimps

Nguyen

Dang

Nguyen

et al. 2018

Asian J Pharm Clin Res

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Objectives: The objectives are aimed to investigate the antibacterial properties of five Vietnamese medicinal plants against acute hepatopancreatic necrosis disease (AHPND)-caused bacterial pathogens, to verify their potentials to apply as a new treatment therapy. Methods:Extracts from plants, such as Psidium guajava leaf, Piper betle L. leaf, Phyllanthus amarus leaf, Rhodomyrtus tomentosa seed, and Allium sativum bulb, were tested against three AHPND-caused bacteria. Agar infusion and broth dilution methods were employed to evaluate extract in vitro antibacterial effects, while experiments with cultured whiteleg shrimps were applied to access their safety when applied in vivo. High-performance liquid chromatography (HPLC) analysis was applied to identify components in the extracts.Results: P. amanus and R. tomentosa extracts exerted the strongest inhibition on tested bacteria. Other extracts, including P. betel and P. guajava, were less effective, while A. sativum showed no effects against bacteria. In safety assessment experiments, we observed that only crude extracts of R. tomentosa and A. satium were safe, while others significantly reduced their survival rates. HPLC showed that extracts of high antibacterial properties had rich phenol constituents. In addition, the phenolic profile of R. tomentosa showed the presence of piceatannol. Conclusion:Considering both of antibacterial effects and safety properties altogether, we concluded that among the five examined plant materials of this study, R. tomentosa had the highest potential to apply in AHPND treatment, as only this plant showed the high effects on pathogenic bacteria while were still safe for host aquatic shrimps.

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Efficacy of Rose Myrtle Rhodomyrtus tomentosa Seed Extract against Acute Hepatopancreatic Necrosis Disease in Pacific Whiteleg Shrimp Penaeus vannamei

et al. 2019

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Acute hepatopancreatic necrosis disease (AHPND) is a new emerging bacterial disease that has been recently reported to cause mass mortalities in Pacific whiteleg shrimp Penaeus vannamei. Antibiotics have been used to treat bacterial diseases in shrimp, but most of them have been ineffective and have resulted in drug residues in the harvested shrimp products. In this study, an alternative approach was tested for its efficacy in controlling AHPND. The extract of rose myrtle Rhodomyrtus tomentosa seed, a traditional Vietnamese medicine, was tested for antibacterial effect against three AHPND bacterial strains in vitro (Vibrio parahaemolyticus [VPAHPND] KC12.020, VPAHPND KC13.14.2, and V. harveyi KC13.17.5) and was further evaluated for its potential efficacy in prevention of AHPND in shrimp in vivo. The in vitro studies showed that the antibacterial activity of the R. tomentosa extract was dose dependent, with the strongest bacterial susceptibility (≥18.0 mm) at a concentration of around 3,500 μg/disc. The in vivo studies showed that after challenge with VPAHPND KC12.020, the survival rates for shrimp in the groups that received feed pellets supplemented with extract at 3.5% or 7.0% (survival ~48.9% and 52.2%, respectively) were significantly higher than the zero survival rate in the positive control group, which received feed without the extract. These results indicate that the use of the R. tomentosa extract as an alternative therapy for control of AHPND in shrimp could help to minimize disease outbreaks. As a result, the extract is further expected to reduce drug/chemical residues in shrimp products.

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Optimisation of extraction of piceatannol from Rhodomyrtus tomentosa seeds using response surface methodology

Cited by 31 publications

References 20 publications

Green ultrasound-assisted extraction of anthocyanin and phenolic compounds from purple sweet potato using response surface methodology

Green ultrasound-assisted extraction of anthocyanin and phenolic compounds from purple sweet potato using response surface methodology

Screening Antibacterial Effects of Vietnamese Plant Extracts Against Pathogens Caused Acute Hepatopancreatic Necrosis Disease in Shrimps

Efficacy of Rose Myrtle Rhodomyrtus tomentosa Seed Extract against Acute Hepatopancreatic Necrosis Disease in Pacific Whiteleg Shrimp Penaeus vannamei

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