An assessment of the structure of shea global value chain in Ghana and implication for policy development.

The global value chain for shea has witnessed major transformations in the last two decades. This study was aimed at providing a detailed understanding of the structure of the shea value chain in Ghana. Data were collected primarily from primary source and secondary sources. A total of 820 upstream actors, 20 aggregators, 2 processing companies and other experts were interviewed using both closed-ended and open-ended questionnaires to gather qualitative and quantitative data. The study employed the value chain framework to analyse the structure of the shea value chain in Ghana. Data analysis was primarily descriptive in nature. A value chain map, schematic diagram, and flow charts were generated to show the linkages between actors and the flow of resources, materials, products, information, and funds. The results show that the shea value chain is highly gendered, with women at the base of the chain, working as shea kernel producers and processors of crude shea butter, using mainly traditional methods, hence output is sub-optimal. The mid-stream actors were all males, whose main function involves aggregating shea kernels across several communities for industrial processors and export companies. Processing companies, using mechanised methods, process and export several derivatives of shea (shea grits, shea butter, stearin, and olein) to mainly to high-end markets in the E.U and Asia. Though female participation in the shea global value chain is prominent, their output is way too low at the current level to make significant impact. Policy focus must be on supporting upstream actors through the provision of improved processing facilities, community infrastructure, and skills training to enhance the capacity of upstream actors to improve their performance.

A Ru(II)-arene-ferrocene complex with promising antibacterial activity.

The evolution of high virulence bacterial strains has necessitated the development of novel therapeutic agents to treat resistant infections. Metal-based therapeutics represent a promising avenue for advancement, given their structural variability and unique modes of action relative to classical organic molecules. One strategy that has seen marked success is the incorporation of ferrocene into the framework of established antibacterial agents, while ruthenium-based complexes have also shown promise as bioactive compounds. This work focused on the preparation of novel ruthenium(II)-arene complexes containing Schiff base ligands with an attached ferrocene, and evaluation of their antibacterial activity. Structure-activity relationships identified the importance of having a phenyl group between the Schiff base imine and the appended ferrocene. This complex, C2, showed prominent activity against several clinically relevant bacterial strains, including a minimum inhibitory concentration of 16 µg mL-1 for methicillin-resistant Staphylococcus aureus (MSRA). Overall, the results of this study represent a promising new lead for future development of novel antibacterial agents.

A comparative study on the quality of bio-oil derived from green macroalga Enteromorpha clathrata over metal modified ZSM-5 catalysts.

The green macroalga Enteromorpha clathrata was pyrolyzed with or without catalysts at the temperature of 550 °C for producing high-quality bio-oil. The ZSM-5 and 1,2,3 mmol Mg-Ce/ZSM-5 catalysts were introduced to investigate the yields and components distribution of bio-oil. Increase of bio-oil production was obtained with the use of ZSM-5 and 1,2,3 mmol Mg-Ce/ZSM-5 catalysts. The 1 mmol Mg-Ce/ZSM-5 catalyst exhibited more promising property for promoting the relative content of C5-C7 compounds, and decreasing the relative content of acids in bio-oil. The results suggested that E. clathrata had potential as pyrolysis feedstocks for producing the high-quality bio-oil with large amounts of C5-C7 compounds and low relative content of acids when the 1 mmol Mg-Ce/ZSM-5 catalyst was used. Furthermore, the physicochemical properties of ZSM-5 and 1 mmol Mg-Ce/ZSM-5 catalysts were investigated by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and temperature-programmed desorption of ammonia.

Lessons from a geospatial analysis of depot medroxyprogesterone acetate sales by licensed chemical sellers in Ghana.

OBJECTIVES: To map access to depot medroxyprogesterone acetate (DMPA) from licensed chemical sellers (LCS); to estimate the proportion of women of reproductive age in areas with access; and to examine affordability and variability of costs. METHODS: A geospatial analysis was conducted using data collected from 298 women who purchased DMPA from 49 geocoded LCS shops in the Amansie West and Ejisu-Juabeng districts of Ghana from June 4 to August 31, 2012. The women reported on cost and average distance traveled to purchase DMPA. RESULTS: In Amansie West, 21.1% of all women of reproductive age lived within average walking distance and 80.4% lived within average driving distance of an LCS. In Ejisu-Juabeng, 41.9% and 60.1% of women lived within average walking and driving distance, respectively. Distribution of affordability varied across each district. CONCLUSIONS: Access to LCS shops is high, and training LCS to administer DMPA would increase access to family planning in Ghana, with associated time and cost savings.

Injectable contraceptive sales at licensed chemical seller shops in ghana: access and reported use in rural and periurban communities.

CONTEXT: Most women in Ghana obtain oral contraceptives and condoms from shops run by licensed chemical sellers, but such shops are not legally permitted to sell the country's most widely used method, the injectable. Allowing shops to sell the injectable could increase access to and use of the method. METHODS: In 2012-2013, semistructured telephone interviews were conducted among convenience samples of 94 licensed chemical seller shop operators in two districts who were trained to sell the injectable and of 298 women who purchased the method from these shops. Follow-up interviews were conducted with 92 clients approximately three months after their initial injectable purchase. RESULTS: Ninety-seven percent of shop operators reported selling the injectable, and 94% felt sufficiently trained to provide family planning methods and services. Virtually all sellers (99%) referred clients to a hospital or health facility for injection; none provided injections themselves. Fifty-six percent of injectable clients were new family planning users. Of those who completed a follow-up interview, 79% had purchased the injectable again from a shop. Virtually all clients (97%) reported getting their injection at the health facility to which they were referred by the seller. Women cited trust, convenience and commodities being in stock as key reasons for purchasing from a shop. CONCLUSION: Licensed chemical seller shop operators can safely sell the injectable and refer clients to health facilities for screening, counseling and injection.