In the background of rapid expansion of plastic greenhouse vegetable production in China, many environmental risks have emerged in recent years. In this study, the soils with a chronosequence in greenhouse vegetable fields were collected and the soil humic acids (HAs) and fluvic acids (FAs) were extracted and purified. The soil HAs and FAs were found to show inhibition activities against phytop...

Background:Dang gui (Apiaceae; Angelica sinensis radix) is among the most often used Chinese medicinal plants. However, hardly anything is known about its value chain and its influence on the main marker compounds of the drug. The aim of this study is to investigate the value chain of dang gui in Gansu and Yunnan, and the analysis of the marker compounds ferulic acid and Z-ligustilide concentra...

A diffusion-based microreactor system operated with a reaction volume of 8 μL is presented and characterized to intensify the process understanding in microscale cultivations. Its potential as screening tool for biological processes is evaluated. The advantage of the designed microbioreactor is the use for the continuous cultivation mode by integrating online measurement technique for dissolved...

The goal of this study was to determine the feasibility large-scale cultivation locally isolated Tetraselmis striata in different open ponds Gran Canaria. biomass productivities were 24.66 ± 0.53 kgDW 32 days (28.9 t/ha/year) for 8000 L indoors, 42.32 0.81 43 (38.8 an pond outdoors, and 54.9 0.58 28 (19.6 a 45,000 outdoors. photosynthetic efficiencies 1.45 0.03% 1.95 0.04% 1.10 0.01% selected s...

Microalgae are currently considered to be a promising feedstock for biodiesel production. However, significant research efforts crucial improve the current biomass and lipid productivities under real outdoor production conditions. In this context, batch, continuous semi-continuous operation regimes were compared during Spring/Summer seasons in 2.6 m3 tubular photobioreactors select most suitabl...

Breslau, Abraham M. (Veterans Administration Center and University of California Los Angeles Center for the Health Sciences, Los Angeles, Calif.), and Mike Y. Kubota. Continuous in vitro cultivation of spherules of Coccidioides immitis. J. Bacteriol. 87:468-472. 1964.-Spherules of Coccidioides immitis were grown in vitro in continuous culture for more than 4 years. Cultures were grown in modifi...

In the present work, we introduced a novel approach for microbial fatty acids (FA) production. Photosynthetic bacteria, Rhodobacter sphaeroides KD131, were cultivated in a continuous-flow, stirred-tank reactor (CFSTR) at various substrate (lactate) concentrations. At hydraulic retention time (HRT) 4d, cell concentration continuously increased from 0.97 g dcw/L to 2.05 g dcw/L as lactate concent...

In this paper the design of semi-continuous segmental probability models (SCSPMs) in large vocabulary continuous speech recognition is presented. The tied Gaussian densities are trained using data from all states of all utterances while the mixture weights are estimated using data from the state being trained individually. The SCSPMs tie all the densities of all states from all Speech Recogniti...