Extraction of essential oil from methyl cinnamate basil (Ocimum canum Sims) with high yield in a short time using enzyme pretreatment

ABSTRACT Runtunuwu, S.D. et al. 2008. Assembling Hybrid Coconut of GSK x DMT Based on RAPD (RANDOMLY AMPLIFIED POLYMORPHIC DNA) Marker. Eugenia 14 (1) : 134-152. The aimed of this research was : 1. assembling hybrid coconut GSK x DMT (Genjah Salak x Dalam Mapanget) that seeds growth was relatifly homogeneous based on RAPD (Randomly Amplified Polymorphic DNA) marker and 2. to found the assembling method of hybrid coconut that will produce massive seeds relatifely short time will homogeneous plant. It was 65 individu trees observe for the average of famale flower per bunch. The result was 25 individu of coconut GSK has the average flower production > 40 per bunch was analyze the homogeneous genetic with the RAPD marker. Based on the analyze RAPD that were 25 individu of GSK coconut trees have the same genetic average 88 % and 14 individu among that was 100 % have same genetic. Further more that 14 individu of GSK was crossing with the 3 individu of DMT that have high yield per year its was DMT 1188, 1172 and 781. Based on the evaluation for the color of buds, high of buds, the steam circle, the petiole color and the germination time of hybrid coconut seeds from the crossing of GSK x DMT 1188 produce more than 70 % seeds that have same genetic, also for crossing of GSK x DMT 1172 have 9 combination and have more than 70 % that same genetic, 10 combination from crossing GSK x DMT 781 have more than 80 % same seeds growth. Therefore, using the RAPD marker were successfully produced 28 crossing of the hybrid coconut GSK x DMT that have relatifly homogeneous seeds growth. Keywords : assembling, hybrid coconut GSK x DMT, RAPD.

Download Full-text

Microwave synthesis, photophysical properties of novel fluorescent iminocoumarins and their application in textile printing

Pigment & Resin Technology ◽

10.1108/prt-04-2014-0029 ◽

2015 ◽

Vol 44 (2) ◽

pp. 87-93 ◽

Cited By ~ 5

Author(s):

G.H. Elgemeie ◽

K.A. Ahmed ◽

E.A. ahmed ◽

M.H. helal ◽

D.M. Masoud

Keyword(s):

Blue Light ◽

Microwave Synthesis ◽

Photophysical Properties ◽

Ethyl Cyanoacetate ◽

High Yield ◽

The Novel ◽

Dioxane Solution ◽

Content Type ◽

Textile Printing ◽

Short Time

Purpose – This paper aims to synthesise coumarine flourescent dyes from a cheap material in a very short time with a very high yield, and by using a clean green chemistry. Design/methodology/approach – Efficient microwave synthesis for some novel iminocoumarins starts from the reaction of p-phenyl-enediamine and ethyl cyanoacetate followed by cyclocondensation with salicylaldehyde derivatives. Findings – The synthesized iminocoumarine compounds were characterized by spectroscopic methods. Absorption and fluorescence spectra of the compounds were also recorded. All compounds were fluorescent in 1,4-dioxane solution, they all emitted blue light (440-460 nm). The printing properties were studied, and their applications on printing polyester and polyamide fabrics were studied by silk screen printing. Originality/value – The authors designed efficient microwavel synthesis for some novel iminocoumarine derivatives; The novel procedure features short-reaction time, moderate yields and simple workup; All compounds were fluorescent in 1,4-dioxane solution, and they all emitted blue light; The authors studied their application in printing polyester and polyamide fabrics.

Download Full-text

Overexpression of a Rosa rugosa Thunb. NUDX gene enhances biosynthesis of scent volatiles in petunia

PeerJ ◽

10.7717/peerj.11098 ◽

2021 ◽

Vol 9 ◽

pp. e11098

Author(s):

Lixia Sheng ◽

Shu Zang ◽

Jianwen Wang ◽

Tiantian Wei ◽

Yong Xu ◽

...

Keyword(s):

Gene Expression ◽

Essential Oil ◽

Gene Expression Pattern ◽

Mass Spectrometry Analysis ◽

High Yield ◽

Rosa Rugosa ◽

Spectrometry Analysis ◽

Component Content ◽

China Rose ◽

Aroma Components

Rosa rugosa is an important natural perfume plant in China. Rose essential oil is known as ‘liquid gold’ and has high economic and health values. Monoterpenes are the main fragrant components of R. rugosa flower and essential oil. In this study, a member of the hydrolase gene family RrNUDX1 was cloned from Chinese traditional R. rugosa ‘Tang Hong’. Combined analysis of RrNUDX1 gene expression and the aroma components in different development stages and different parts of flower organ, we found that the main aroma component content was consistent with the gene expression pattern. The RrNUDX1 overexpressed Petunia hybrida was acquired via Agrobacterium-mediated genetic transformation systems. The blades of the transgenic petunias became wider and its growth vigor became strong with stronger fragrance. Gas chromatography with mass spectrometry analysis showed that the contents of the main aroma components of the transgenic petunias including methyl benzoate significantly increased. These findings indicate that the RrNUDX1 gene plays a role in enhancing the fragrance of petunia flowers, and they could lay an important foundation for the homeotic transformation of RrNUDX1 in R. rugosa for cultivating new R. rugosa varieties of high-yield and -quality essential oil.

Download Full-text

Studies on 203Hg-Chlormerodrin Rapid Synthesis and Measurement of 203Hg-Chlormerodrin and Determination of its Fate in Rats

Nuklearmedizin ◽

10.1055/s-0038-1624715 ◽

1970 ◽

Vol 09 (03) ◽

pp. 259-267

Author(s):

Akira Hasegawa ◽

Goro Urakubo ◽

Akira Tanaka

Keyword(s):

Isotopic Exchange ◽

Practical Method ◽

Renal Tissue ◽

Whole Body ◽

High Yield ◽

Rapid Synthesis ◽

Isotopic Exchange Reaction ◽

Preferential Binding ◽

Short Time

SummaryThe rapid synthesis of 203Hg-chlormerodrin by an isotopic exchange reaction in organic solvents was investigated using a mixture of inactive chlormerodrin and 203Hg-mercuric chloride. This reaction is promising as a practical method since 203Hg-CM can be so prepared in a short time. In methanol, 3-acetoxy-mercuri-2 methoxypropylurea exchanged at room temperature with 203Hg-mercuric acetate to a relatively high yield. The most suitable solvent for paper chromatography of CM was found to be a mixture of dimethylformamide, water and methanol (5 : 1 : 14 v/v). The fate and distribution of 203Hg-CM in rats were studied after a single oral dose and the maximum of activity was observed in the kidneys during the first 6 hours. A preferential binding of Hg by renal tissue was found. The biological half-life in the whole body was about 18.5 days. This compound was excreted mainly via the faeces but small amounts were excreted in the urine.

Download Full-text

Synthesis of 1-(β-coumarinyl)-1-(β-indolyl)trifluoroethanols through regioselective Friedel–Crafts alkylation of indoles with β-(trifluoroacetyl)coumarins catalyzed by Sc(OTf)3

RSC Advances ◽

10.1039/d0ra01237h ◽

2020 ◽

Vol 10 (24) ◽

pp. 13929-13935 ◽

Cited By ~ 1

Author(s):

Lijun Shi ◽

Ying Liu ◽

Caixia Wang ◽

Xinxin Yuan ◽

Xiaobiao Liu ◽

...

Keyword(s):

High Yield ◽

Short Time

A Friedel–Crafts alkylation of indoles with β-(trifluoroacetyl)coumarins catalyzed by Sc(OTf)3 to afford 1-(β-coumarinyl)-1-(β-indolyl)trifluoroethanols in a short time and high yield was developed.

Download Full-text

Chemical Composition and Antimicrobial Activities of Artemisia argyi Lévl. et Vant Essential Oils Extracted by Simultaneous Distillation-Extraction, Subcritical Extraction and Hydrodistillation

Molecules ◽

10.3390/molecules24030483 ◽

2019 ◽

Vol 24 (3) ◽

pp. 483 ◽

Cited By ~ 11

Author(s):

Xiao Guan ◽

Depeng Ge ◽

Sen Li ◽

Kai Huang ◽

Jing Liu ◽

...

Keyword(s):

Essential Oil ◽

Essential Oils ◽

Salmonella Enteritidis ◽

Antimicrobial Activities ◽

Inhibitory Effect ◽

Gas Chromatography Mass Spectrometry ◽

High Yield ◽

Agar Disc ◽

Artemisia Argyi ◽

Simultaneous Distillation Extraction

Artemisia argyi Lévl. et Vant essential oil could be used as a good antimicrobial flavouring agent and applied in the food industry. In this study, three methods, including simultaneous distillation-extraction (SDE), subcritical extraction and hydrodistillation, were applied to extract A. argyi essential oil. Compared with subcritical extraction (1%) and hydrodistillation (0.5%), SDE gave a higher yield (1.2%). Components of the essential oils were analysed with gas chromatography-mass spectrometry (GC-MS), and the most abundant ingredients were caryophyllene oxide, neointermedeol, borneol, α-thujone and β-caryophyllene. These five components accounted for 82.93%, 40.90% and 40.33% for SDE, subcritical extraction, and hydrodistillation, respectively. Based on agar disc diffusion and minimum inhibitory concentration (MIC) assays, SDE oil showed a significant inhibitory effect towards Listeria monocytogenes, Escherichia coli, Proteus vulgaris, Salmonella enteritidis and Aspergillus niger. Furthermore, electron microscope observations (SEM) confirmed that SDE oil could obviously deform cell morphology and destroy the structure of cell walls. Performances showed that SDE was a promising process for extracting A. argyi essential oil with both high yield and antimicrobial activity.

Download Full-text

Post-drying of energy sorrel in a grate stock

Research in Agricultural Engineering ◽

10.17221/4921-rae ◽

2012 ◽

Vol 50 (No. 1) ◽

pp. 15-22

Author(s):

P. Hutla ◽

J. Mazancová

Keyword(s):

Water Content ◽

Electric Energy ◽

Energy Crop ◽

Yield Potential ◽

High Yield ◽

Large Capacity ◽

The Czech Republic ◽

Time Switching ◽

Operational Conditions ◽

Short Time

Energy sorrel is a crop with high-yield potential and belongs among the most promissing energy crop for the Czech Republic. The suitable processing technology is harvest by the harvesting cutter with subsequent short-time storage and post-drying of chopped material in the large-capacity hayloft. For chopped sorrel were found-out hydraulic air losses during its passing through the stored layer and they were compared with values for stored forage. Two methods of drying ventilators controlling in the large-capacity heyloft were compared with the regime of time switching within chopped sorrel drying. Electric energy comsumption for ventilators drive in different regimes depends on water content in the material. Method of ventilators or time switching controlling has no effect on drying process result, thus even on water content reduction in the dried material. Under operational conditions the possibility of the chopped energy sorrel in large-capacity heyloft was verified.

Download Full-text

Spiked pepper: selection of clones toward cropping on the edaphoclimatic conditions from Belém, Brazil

Horticultura Brasileira ◽

10.1590/s0102-05362010000400007 ◽

2010 ◽

Vol 28 (4) ◽

pp. 418-423

Author(s):

José Maria D Gaia ◽

Milton Guilherme da C Mota ◽

Carmen Célia C da Conceição ◽

José Guilherme S Maia

Keyword(s):

Essential Oil ◽

Production Systems ◽

Biological Properties ◽

Leaf Length ◽

High Yield ◽

Small Scale ◽

Scale Production ◽

Fresh Matter ◽

Climate Conditions ◽

Branch Plant

Spiked pepper presents a high yield of essential oil with useful biological properties for human health and agriculture. In order to evaluate the morphoagronomic variability and, afterwards, to select genotypes for plant breeding and cultivation, thirteen clones were propagated. Thus, spiked pepper cuttings were rooted under greenhouse, transferred to a nursery and, afterwards, planted at the experimental area. The evaluations were carried out in two harvest seasons. The evaluated morphoagronomic traits were number of leaves per branch, leaf length, leaf width, diameter of the oldest branch, plant height, number of orthotropic branches, number of plagiotropic branches, internode length, fresh and dry matter, yield of essential oil and dillapiole content. The analysis of variance and the Scott-Knott test were utilized for data analysis and comparisons among clones and parentals were carried out through genetic and experimental variation coefficients. Fresh matter (first season), number of orthotropic branches and diameter of the the oldest branch (second season) presented variability. The Scott-Knott test detected variability for fresh matter, dillapiole content (first season), diameter of the oldest branch and number of orthotropic branches (second season). The yield of essential oil and the dillapiole content were higher for the clones than for the parentals. In conclusion, the clones showed adaptability to the soil and climate conditions of Belém, Pará State, Brazil; the harvest time influenced the oil yield and the dillapiole content; the variance analysis evidenced uniformity and productivity for the evaluated clones, suggesting they can be recommended for cultivation on small-scale production systems in this location.

Download Full-text

Valorisation of Chinese hickory shell as novel sources for the efficient production of xylooligosaccharides

10.21203/rs.3.rs-868910/v1 ◽

2021 ◽

Author(s):

Zhi-Kun Wang ◽

Caoxing Huang ◽

Jun-Lei Zhong ◽

Lv Tang ◽

Bing Li ◽

...

Keyword(s):

Food Waste ◽

Liquid Fraction ◽

Hydrothermal Process ◽

Maximum Yield ◽

High Yield ◽

Efficient Production ◽

Pretreatment Condition ◽

Sustainable Technologies ◽

Chemical Structures ◽

Short Time

Abstract Chinese hickory shell, a by-product of the food industry, is still not utilized and urgent to develop sustainable technologies for its valorization. This research focuses on the systematical evaluation of degraded products and xylooligosaccharide production with high yield from the shell via hydrothermal process. The results indicated that the pretreatment condition strongly affected the chemical structures and compositions of the liquid fraction. The maximum yield of XOS (55.3 wt%) with limitation of by-products formation was achieved at 160 oC for 2 h. High temperature (220 oC) and short time (0.5 h) contributed to hydrolysis of xylooligosaccharide with high DP to yield 37.5 wt% xylooligosaccharide with DP from 2 to 6. xylooligosaccharide obtained mainly consisted of xylan with branches according to the HSQC NMR analysis. Overall, the production of XOS with a high yield from food waste will facilitate the valorization of food waste in the biorefinery industry.

Download Full-text