Journal of Applied Botany and Food Quality <p>This journal is published in collaboration with the German Society for Quality Research on Plant Foods and the Section Applied Botany of the German Botanical Society. It focuses on applied research in plant physiology and plant ecology, plant biotechnology, plant breeding and cultivation, phytomedicine, plant nutrition, plant stress and resistance, plant microbiology, plant analysis (including -omics techniques), and plant food chemistry.</p> en-US <p>From Volume 86 (2013) on, the content of the journal is licensed under the&nbsp;<a href="">Creative Commons Attribution-ShareAlike 4.0 License</a>. Any user is free to share and adapt (remix, transform, build upon) the content as long as the original publication is attributed (authors, title, year, journal, issue, pages) and the new work is licensed under a CC-BY-SA compatible license.</p> <p>The copyright of the published work remains with the authors. If you want to use published content beyond what the CC-BY-SA license permits, please contact the corresponding author, whose contact information can be found on the last page of the respective article. In case you want to reproduce content from older issues (before CC BY-SA applied), please contact the&nbsp;corresponding author to ask for permission.</p> (Journal of Applied Botany and Food Quality) (Heike Riegler) Wed, 28 Feb 2018 11:16:15 +0100 OJS 60 Effects of Neem (Azadirachta indica) seed and Turmeric (Curcuma longa) rhizome extracts on aphids control, plant growth and yield in okra <p>The use of synthetic pesticides to control pests and increase crops yield is a common practice, but they cause several environmental and health problems. Therefore, there is a need to explore alternative approaches to reduce the sole dependence on synthetic pesticides. The present study was conducted to screen the extracts of Neem seed and Turmeric rhizome for pesticidal activities against okra pests (aphids). Experiments were conducted in field with four plots. One plot was kept as a control (unsprayed) and one was sprayed with synthetic pesticides, one with Neem seeds extract and one with Turmeric rhizome extract. The effect on number of pests, plant growth and yield was observed at regular intervals. A significant reduction in pests was recorded in all treatments as compared to the control. Neem seed extract was more effective than Turmeric rhizome extract as revealed by a 73% decrease in aphids by Neem extract in comparison to 54% by Turmeric extract after last application. Both the extracts were found to be more effective than the synthetic pesticides in controlling okra pests. Both the extracts had stimulatory effects on okra growth and yield. For example, the total yield of plots sprayed with Neem (53.3 kg plot<sup>-1</sup>) and Turmeric extract (47.7 kg plot<sup>-1</sup>) was higher than the yield of control plot (33.8 kg plot<sup>-1</sup>) and plot sprayed with synthetic pesticides (39 kg plot<sup>-1</sup>). It is concluded that Neem and Turmeric extracts can be used as alternative of synthetic pesticides for controlling pests attacks in okra.</p> Uzair Muhammad, Tariq Nawaz Khattak, Hazir Rahman, MK Daud, Waheed Murad, Azizullah Azizullah ##submission.copyrightStatement## Mon, 13 Aug 2018 16:09:21 +0200 2nd International Plant Spectroscopy Conference (IPSC-2019), March 25-28, 2019 in Berlin (Germany) <p>Dear colleagues,</p> <p>&nbsp;it is an honor to invite you to participate in the <strong>2nd International Plant Spectroscopy Conference (IPSC-2019)</strong> which will be held in Berlin, Germany, March 25-28, 2019 (<a href=""></a>)</p> <p>&nbsp;The conference brings together internationally renowned spectroscopists and plant scientists. The meeting will gather experts from fundamental to applied research and will highlight applications from academia to industry. New developments in various fields of spectroscopy and their application in plant sciences will be presented and discussed.</p> <p><strong>Registration is already open</strong>. Deadline for abstract submission and early-bird registration/ payment is October 31, 2018. Deadline for regular registration is December 31, 2018 (late registration will cost additional processing fee). Conference venue is the Henry Ford Building of the Freie Universitaet in Berlin. It provides a modern lecture hall and a large foyer for coffee breaks, exhibition and poster demonstration. Exhibitors of analytical instruments are welcome and will receive detailed information on request.</p> <p>Since we want to keep conference fees as low as possible, especially for young scientists, <strong>we are dependent on attracting suitable sponsors who are willing to support the conference financially. Depending on the sponsorship contribution you have made, you can then claim individual benefits listed in the corresponding sponsorship agreement</strong>: <a href=""></a>.<br> I would be delighted to personally welcome you to IPSC-2019 in Berlin next March.<br> If you have any questions about our conference and the sponsoring, I am at your disposal.</p> <p>&nbsp;</p> <p><strong>Titles of Plenary and Invited Lectures</strong></p> <p>"Miniaturization in vibrational spectroscopy: state-of-the-art instrumentation and novel applications" (Heinz Siesler)</p> <p>"Raman imaging of plant cell wall: where do we stand and how to move forward" (Notburga Gierlinger)</p> <p>"Raman microscopy combined with AFM to get a deeper insight into complex biological samples" (Malgorzata Baranska)</p> <p>"Multivariate analytical strategies for spectral data of plants" (Andras Gorzsas)</p> <p>"Experimental design considerations for developing spectroscopic calibrations of plant materials" (Claudia Beleites)</p> <p>"Cheminformatics tools to query metabolomics across species, genotypes and metabolic modules" (Oliver Fiehn)</p> <p>"NMR in plant science - methods and selected examples" (Bernd Schneider)</p> <p>"An overview of NMR applications in metabolite profiling of small molecules for plant metabolism studies" (Catherine Deborde)</p> <p>"Hyperspectral imaging in combination with chemometric data analysis - a powerful duo in the quality control of herbal medicines" (Ilze Vermaak)</p> <p>"Recent advances in vibrational spectroscopic imaging studies of medicinal plants" (Christian Huck)</p> <p>The conference dinner will combine a 4-hour boat trip on the river Spree through the city center of Berlin with culinary delights in a relaxed setting. For more information and registration, visit us at <u><a href=""></a></u></p> <p>We are looking forward to seeing you in Berlin!</p> <p>&nbsp;</p> <p>On behalf of the international scientific and the local organizing committee,</p> <p>&nbsp;Dr. Hartwig Schulz<br> Journal of Applied Botany and Food Quality - Editor-in-Chief</p> <p>Direktor und Professor<br> Julius Kühn-Institut (JKI)<br> Bundesforschungsinstitut für Kulturpflanzen<br> Institut für ökologische Chemie, Pflanzenanalytik und Vorratsschutz<br> Königin-Luise-Straße 19<br> 14195 Berlin (Germany)</p> Hartwig Schulz ##submission.copyrightStatement## Wed, 01 Aug 2018 16:07:26 +0200 Characteristic amino acids in tea leaves as quality indicator for evaluation of Wuyi Rock Tea in different cultured regions <p>Free amino acid compositions in Wuyi Rock Tea leaves from Yu (authentic rock region), Guiyan (semi-authentic rock region) and Qishan (ordinary region) tea plantations were analyzed. Results showed that contents of 18 free amino acids were 1.6-2.0 times higher in Yu and Guiyan than that in Qishan. The theanine contents reached to 17-20 mg g-1 in Yu and Guiyan, while it was less than 10 mg g-1 in Qishan. Hierarchical cluster analysis and principal component analysis were effective in distinguishing Rock Tea from different regions. The ratios of theanine, sweet and umami amino acids were 8%, 5% and 6% higher, respectively in Yu than that in Qishan. Sensory evaluation score were positively correlated with the ratios of theanine, sweet and umami amino acids (P &lt; 0.05 or P &lt; 0.01). Our results highlight that the favourite characteristic amino acids are dominant contributors to sweet aftertaste of Rock Tea.</p> Xiaoli Jia, Jianghua Ye, Haibin Wang, Li Li, Feiquan Wang, Qi Zhang, Jiebo Chen, Xinyu Zheng, Haibin He ##submission.copyrightStatement## Thu, 26 Jul 2018 14:41:36 +0200 Alkaloid content and essential oil composition of Mahonia breviracema cultivated under different light environments <p>Light can affect the yields of alkaloid and essential oil in the synthesis of secondary metabolites directly or indirectly through plant growth. Despite <em>Mahonia breviracema</em> being an endemic medicinal species in China, research on the influence of light on production of alkaloid and essential oil is scarce. Thus, this research evaluated the influence of various lighting conditions on alkaloid yields and the composition and yields of the essential oils of <em>M. breviracema</em>. The results revealed significant differences in alkaloid yields, oil yields<br>and chemical characteristics of <em>M. breviracema</em> grown in four different light intensities from 10 to 100% full sun shine. The total amount of alkaloids in plants under I30 and I50 was higher than that under I10 and I100 due to the higher biomass of plants. Oil yield of <em>M. breviracema</em> leaf increased linearly with the increase of light<br>incidence. Plants grown under I10 had less plastoglobuli, which coincided with the lowest oil yield (1.91 g kg-1). The plastoglobuli in chloroplasts increased when the irradiance levels increased, resulting in the highest oil yields under I100 (4.53 g kg-1). The principal components in the leaves of <em>M. breviracema</em> were hexadecanoic acid (10.54-72.19%) and α-ionone (1.25-42.39%). The highest hexadecanoic acid content was obtained under I50, followed by I30, and the highest α-ionone content was obtained under I100. Therefore, it is necessary to control the light environment to obtain raw materials with high quality.</p> Yanqun Li, Dexin Kong, Hui-ling Liang, Hong Wu ##submission.copyrightStatement## Fri, 13 Jul 2018 10:20:27 +0200 Optimization of brewing conditions in epigallocatechin-3-gallate (EGCG) extraction from Jinxuan summer green tea by response surface methodology <p>The extraction conditions of epigallocatechin-3-gallate (EGCG) from Jinxuan summer green tea and antitumor activity against human gastric cancer SGC-7901 cells of the green tea extracts were investigated. On the basis of a single factor experiment, Box-Behnken design and response surface methodology were employed to optimize the hot water extraction conditions. The optimal extraction conditions for EGCG were determined as: extraction temperature of 85 °C, extraction time of 34 min, water-tea ratio of 41 mL/g, a solution of pH 6, and extraction twice. Under these conditions, the experimental extraction yield value of EGCG was 33.82 mg/g, which was not significantly different in comparison to predicted values. The results indicated that the regression models were suitable for the EGCG extraction from Jinxuan summer green tea. The summer green tea extract prepared under the optimal conditions had a higher antitumor activity against human gastric cancer SGC-7901 cells than the green tea extract made with traditional tea brewing method.</p> Limin Xiang, Shunshun Pan, Xingfei Lai, Lingli Sun, Zhigang Li, Qiuhua Li, Yahui Huang, Shili Sun ##submission.copyrightStatement## Tue, 10 Jul 2018 11:35:21 +0200