Jatropha Curcas Sludge Valorization

Abstract Jatropha which grows in tropical and subtropical climates across the developing world, is a perennial species that received much attention for its ability to grow on 'marginal land and to produce seeds with high oil percentage. Among the different species of Jatropha, Jatropha curcas is suitable as ornamental plant, raw material for dye, potential feed stock, soil enrichment manure and more importantly for biodiesel production. The mechanical pressing of the Jatropha seeds for oil production results in large amounts of solid residue (seed cake) and sludge that contain oil, water, minerals, proteins, toxic compounds and anti-nutritional factors. The aim of our work was to screen the fertilizing power of Jatropha sludge and its oily and solid fractions for promoting biodiesel circular economy. Our results indicated that seeds of watercress had a better germination performance than lettuce with Jatropha sludge and its fractions. This could depend on the different sensitivity of the two species and/or also to the composition of the sludge and its fractions. The solid fraction had the greatest inhibitory effects on germination of both species. The oily fraction had the less phytotoxic effect on the germination process while only in presence of the total sludge at 25%, seeds of watercress and lettuce showed a germination percentage lower than 50%. Higher concentrations were completely inhibitory. The phytotoxic effects of the sludge and its fractions may be attributed to the combination of high EC and phenol contents. This study revealed that highly diluted Jatropha total sludge may be very useful as good source of nutrients for crop production, cutting short the use of chemical fertilizers

Root plasticity improves salt tolerance in different genotypes of lentil (Lens culinaris)

Various morphological root parameters were tested in lentil seedlings in a genotype considered salt tolerant (Ustica) and in a salt sensitive one (Eston), grown on salinized soil. Apart from the root biomass production, two ecotypes showed contrasting root morphological responses and these might be partially responsible for dissimilar abilities to tolerate salinity

Effect of long-term irrigation water salinity on soil properties and microbial biomass

We assessed the effects of saline water irrigation on soil properties and microbial activity. Increasing salinity microbial activity decreased. 1% salinity strongly affected soil biochemical properties and microorganisms. Our results indicate that 0.5% salinity may be tolerated by soil microorganisms suggesting a possible use of brackish water in agriculture soils

Sleep‐Disordered Breathing and 24‐Hour Ambulatory Blood Pressure Monitoring in Renal Transplant Patients: Longitudinal Study

n/

Monitoring Risk Factors and Improving Adherence to Therapy in Patients With Chronic Kidney Disease (Smit-CKD Project): Pilot Observational Study

Background: Chronic kidney disease is a major public health issue, with about 13% of the general adult population and 30% of the elderly affected. Patients in the last stage of this disease have an almost uniquely high risk of death and cardiovascular events, with reduced adherence to therapy representing an additional risk factor for cardiovascular morbidity and mortality. Considering the increased penetration of mobile phones, a mobile app could educate patients to autonomously monitor cardiorenal risk factors. Objective: With this background in mind, we developed an integrated system of a server and app with the aim of improving self-monitoring of cardiovascular and renal risk factors and adherence to therapy. Methods: The software infrastructure for both the Smit-CKD server and Smit-CKD app was developed using standard web-oriented development methodologies preferring open source tools when available. To make the Smit-CKD app suitable for Android and iOS, platforms that allow the development of a multiplatform app starting from a single source code were used. The integrated system was field tested with the help of 22 participants. User satisfaction and adherence to therapy were measured by questionnaires specifically designed for this study; regular use of the app was measured using the daily reports available on the platform. Results: The Smit-CKD app allows the monitoring of cardiorenal risk factors, such as blood pressure, weight, and blood glucose. Collected data are transmitted in real time to the referring general practitioner. In addition, special reminders improve adherence to the medication regimen. Via the Smit-CKD server, general practitioners can monitor the clinical status of their patients and their adherence to therapy. During the test phase, 73% (16/22) of subjects entered all the required data regularly and sent feedback on drug intake. After 6 months of use, the percentage of regular intake of medications rose from 64% (14/22) to 82% (18/22). Analysis of the evaluation questionnaires showed that both the app and server components were well accepted by the users. Conclusions: Our study demonstrated that a simple mobile app, created to self-monitor modifiable cardiorenal risk factors and adherence to therapy, is well tolerated by patients affected by chronic kidney disease. Further studies are required to clarify if the use of this integrated system will have long-term effects on therapy adherence and if self-monitoring of risk factors will improve clinical outcomes in this population

26th Annual Computational Neuroscience Meeting (CNS*2017): Part 3 - Meeting Abstracts - Antwerp, Belgium. 15–20 July 2017

This work was produced as part of the activities of FAPESP Research,\ud Disseminations and Innovation Center for Neuromathematics (grant\ud 2013/07699-0, S. Paulo Research Foundation). NLK is supported by a\ud FAPESP postdoctoral fellowship (grant 2016/03855-5). ACR is partially\ud supported by a CNPq fellowship (grant 306251/2014-0)

Using Digestate as Fertilizer for a Sustainable Tomato Cultivation

The effects of two digestates split up in liquid and solid fractions were investigated on tomato production. The objectives were (1) to verify if the two digestates different in composition differently affected the growth and the quality of tomato; (2) to assess the effectiveness of the two digestate fractions (liquid and solid) on tomato growth and quality characteristics of the harvested tomato fruit. In short, our results evidenced different effects between the two digestates and also between solid and liquid fractions, suggesting that the type of solid fraction (Uliva or Fattoria) rather than the concentration, or their interaction mainly influenced plant growth parameters. Conversely, the effectiveness of liquid fractions were mostly due to the concentrations rather than to the type of digestate. Results also evidenced positive effects of both digestates on the nutritional values of tomatoes, largely explained by the increase in various health-promoting compounds, including vitamin C, flavonoids, and phenolic compounds. The contemporary increase in these different bio-compounds with a wide range of physiological properties and multi target actions confers to digestate treated tomato a nutraceutical benefit. The use of both fractions of both digestates as fertilizer may represent an effective strategy to obtain, even if in some cases at the expense of growth, high-quality fruit in a sustainable way from an economic and environmental point of view

Assessment of Antioxidant and Cytoprotective Potential of Jatropha (Jatropha curcas) Grown in Southern Italy

Jatropha (Jatropha curcas L.) is a plant native of Central and South America, but widely distributed in the wild or semi-cultivated areas in Africa, India, and South East Asia. Although studies are available in literature on the polyphenolic content and bioactivity of Jatropha curcas L., no information is currently available on plants grown in pedoclimatic and soil conditions different from the autochthon regions. The aim of the present work was to characterize the antioxidant system developed by the plant under a new growing condition and to evaluate the polyphenol amount in a methanolic extract of leaves. Along with these analyses we have also tested the antioxidant and cytoprotective activities on lymphocytes. RP-HPLC-DAD analysis of flavonoids revealed a chromatographic profile dominated by the presence of flavone C-glucosydes. Vitexin is the most abundant identified compound followed by vicenin-2, stellarin-2, rhoifolin, and traces of isovitexin and isorhoifolin. Methanolic extract had high scavenging activity in all antioxidant assays tested and cytoprotective activity on lymphocytes exposed to tertz-buthylhydroperoxide. The results highlighted a well-defined mechanism of adaptation of the plant and a significant content of secondary metabolites with antioxidant properties, which are of interest for their potential uses, especially as a rich source of biologically active products

Using Digestate as Fertilizer for a Sustainable Tomato Cultivation

The effects of two digestates split up in liquid and solid fractions were investigated on tomato production. The objectives were (1) to verify if the two digestates different in composition differently affected the growth and the quality of tomato; (2) to assess the effectiveness of the two digestate fractions (liquid and solid) on tomato growth and quality characteristics of the harvested tomato fruit. In short, our results evidenced different effects between the two digestates and also between solid and liquid fractions, suggesting that the type of solid fraction (Uliva or Fattoria) rather than the concentration, or their interaction mainly influenced plant growth parameters. Conversely, the effectiveness of liquid fractions were mostly due to the concentrations rather than to the type of digestate. Results also evidenced positive effects of both digestates on the nutritional values of tomatoes, largely explained by the increase in various health-promoting compounds, including vitamin C, flavonoids, and phenolic compounds. The contemporary increase in these different bio-compounds with a wide range of physiological properties and multi target actions confers to digestate treated tomato a nutraceutical benefit. The use of both fractions of both digestates as fertilizer may represent an effective strategy to obtain, even if in some cases at the expense of growth, high-quality fruit in a sustainable way from an economic and environmental point of view

Use of plant growth-promoting rhizobacteria to ameliorate the performance of lentil under salinity: Rhizobium and lentil under salinity

In the current agricultural model, the increasing soil salinity, especially in arid and semiarid regions, causes environmental and economic losses. Inoculation of plant with growth-promoting rhizobacteria (PGPR) can be a sustainable strategy to increase plant abiotic stress tolerance mainly in the early vulnerable stage of their growth. The efficiency of PGPR inoculation was evaluated in three Italian lentil accessions and two Pakistan native varieties differing in salinity tolerance. Pseudomonas putida (6), Pseudomonas fluorescens (6K) and Serratia ficaria (W10) were used as bio-inoculants. Seedling growth was detected 16 days after NaCl treatments. Results showed that in absence of salinity, all strains increased differently the growth of lentils compared to the un-inoculated ones. Inoculum significantly increased the growth of the most salt sensitive in comparison to the most salt resistant varieties. 6 and 6K were the most effective growth-inducers under salinity stress. A specificity between PGPR and lentil was evident. 6K mostly improved biomass and growth of the Italian accessions, while the strain 6 mostly affected the Pakistan landraces