A waste-derived adsorbent was prepared from waste carbon that obtained the monosodium glutamate production, by microwave heating under ultrasonic spray conditions for removing methylene blue (MB) wastewater.

Microbial communities are essential for the biogeochemical cycles in aquatic ecosystems. The effects of sediment depositional processes on microbial community characteristics Yellow River have not been extensively studied at in-situ macroscopic scale. Since diversion reservoir has sedimentation pond, it can be used as a natural experimental area. This study investigated changes structures, functions, and assembly mechanisms under deposition by analysing 26 water samples. results showed that...

Cis (Z)-β-carotenes with 25.3% 9Z-β-carotene were prepared for nanostructured lipid carriers (NLCs). The optimal conditions NLC preparation using an orthogonal experimental method as follows: the total concentration was 9% (w/v), surfactant 1.4% solid to liquid ratio 3:1 (w/w), and homogenization pressure set at 500 bar three cycles. Under these conditions, encapsulation efficiency (%) of 95.64%, β-carotene in NLCs 2.9 mg/mL, which significantly higher than those reported by others....

Abstract The waste phenolic resin was utilized as the raw material to prepare activated carbon (AC) used KOH activating agent via microwave heating. carbonized at 500°C and then performed with a KOH/Char ratio of 4 power 700 W for duration 15 min. physic-chemical characteristics AC were characterized by N 2 adsorption instrument, FTIR, SEM TEM. BET surface area pore volume found be 4269 m /g 2.396 ml/g, respectively. activation process generate such phenomenally high has little reported in...

Microwave-assisted heating technology was used for treating paracetamol decolorizing spent activated carbon (SAC). The regenerated (RAC) modified using hydrogen peroxide (H2O2) to obtain (MRAC), which removing Congo red (CR) and methylene blue (MB) in aqueous solution, achieving the goal of utilizing hazardous waste resources. RAC BET surface area 1254.46 m2 g−1, results showed that microwave treatment could effectively regenerate carbon. To increase adsorption capacity carbon, with H2O2...

Abstract To facilitate the production of tomato products with high bioactivity and improve utilization orange‐colored tomatoes, carotenoids 11 cultivars were analyzed using high‐performance liquid chromatography photodiode array detection. Moreover, antioxidant activities evaluated by four chemical‐based assays, influences thermal treatment on in tomatoes rich tetra‐ cis (7 Z , 9 7′ 9′ )‐lycopene, phytofluene, phytoene studied. The nine (OT) divided into two categories: OT‐B, containing five...

The effects of some sulfur-containing compounds on the isomerization and degradation lycopene, phytofluene, phytoene under different thermal treatment conditions were studied in detail. Isothiocyanates such as allyl isothiocyanate (AITC) polysulfides like dimethyl trisulfide (DMTS) had effect configuration PTF (phytofluene), PT (phytoene), lycopene. proportion their naturally occurring Z-isomers (Z1,2-PTF 15-Z-PT) decreased transformed into other isomers including all-trans configuration,...

Optimization of total flavonoid extraction from Castor leaves using orthogonal test methodology with the factors ethanol concentration, temperature,extraction time,solid/liquid ratio on yield flavonoids were investigated.The results showed that optimum extracting conditions castor as follows: adding 1:40 g·mL -1 30% alcohol and for 30 min,extraction temperature 70°C. Under optimal conditions, maximal was 1.81%.

Golden Guanyin tea from Lishui city, Zhejiang province, is a new variety of Oolong with special aromas. To analysis the aroma compounds, two sample preparation methods grinding and water distillation were carried out, then aromas amino acids detected. The main compounds dimethyl sulfide, butanal, ethyl acetate, butanedial cyclobutene by method, as for detected benzeneacetaldehyde, phenylethyl alcohol, benzyl nitrile, Geraniol, indole, cyclopentene, butyrate, nerolidol, methyl jasmonate,...

Orthogonal experiment optimization of microwave-assisted extraction (MAE) conditions total flavonoids from castor leaves with the factors ethanol concentration, microwave power, time, solid/liquid ratio on yield were studied. The results showed that optimum extracting as follows: adding 1:50 g·mL-1 40% alcohol and for 3 min,microwave irradiation power 464W. Microwave is fast, energy saving high rate.

Orthogonal experiment optimization of microwave-assisted extraction (MAE) conditions total flavonoids from Magnolia liliflora petals with the factors ethanol concentration, time,microwave power,solid/liquid ratio on yield were studied. The results showed that optimum extracting as follows: adding 1:10 g·mL-1 40% alcohol and for 5 min,microwave irradiation power 464W, under optimal conditions, maximal was 2.08%.

Abstract: Surface response optimization of microwave-assisted extraction (MAE) conditions anthocyanins from black corn hull with the factors ethanol concentration, microwave power, time, solid/liquid ratio (g:mL) on yield anthocyanin were studied.The results showed that optimum extracting as follows: adding 1:40.00 (m:v) 79.67% alcohol (pH1.0) and for 79.25 s,microwave irradiation power 560.00W.

Surface response optimization of microwave-assisted extraction (MAE) conditions anthocyanins from black soybean hull with the factors ethanol concentration, microwave power, time, solid/liquid ratio (g:mL) on yield anthocyanin were studied. The results showed that concentration and liquid to solid had most important influence; interaction solid,interaction power time significant influence hull. optimum extracting as follows: adding 1:40.00 (m:v) 60.35% alcohol (pH2.0) for 74.26 s under 237.86 W.

This study investigates the copigmentation effect and its underlying mechanism of tannin on Mahonia bealei anthocyanins (MBA). Results show that addition increases absorption maximum wavelength MBA. At pH 3.73, activation energy MBA-tannin adduct is 2.43 times Under same temperature, complex shows better heat stability as exemplified by lower degradation rate longer half-time. The light-induced constant 93.33% It shown in this paper can improve light MBA therefore efficient a copigment....

Abstract Large amounts of spent mercury catalyst (SMC) produced in producing polyvinyl chloride (PVC) has a great influence on the environment. In this work, microwave and ultrasonic spray were applied to regenerate carrier SMC. The optimal experimental conditions regeneration temperature 900°C time 60 min. Subsequently, textures pores content, morphology structure surface functional groups SMC regenerated activated carbon (RAC) characterized by N 2 adsorption desorption isotherms, ICP, SEM,...