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1.
Food Chem ; 154: 323-9, 2014 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-24518349

RESUMO

The blending effects of mango seed fat (MSF), extracted using supercritical fluid, and palm stearin (PS) to formulate hard cocoa butter replacers (CBRs), were investigated. The triglycerides (TG), thermal properties and solid fat content (SFC) of the formulated blends were determined using different chromatographic and thermal techniques. All the blends had three main TGs; namely, 1,3-dipalmitoyl-2-oleoylglycerol (POP) (8.6-17.7%), 1-palmitoyl-2-oleoyl-3-stearoyl-glycerol (POS) (12.6-19.6%), and 1,3-distearoyl-2-oleoyl-glycerol (SOS) (37.2-31.4%), with SOS being the major component. The melting peak temperatures gradually increased and shifted towards higher temperatures with PS. The crystallization onset temperatures increased, while the offset decreased with PS. The SFC did not drop to 0% at 37.5°C, which was shifted to 0% at and above 40°C for some blends. The studies revealed that CBRs could be prepared by blending MSF and PS, and they could be utilised by chocolate manufacturers in tropical countries.


Assuntos
Gorduras na Dieta/análise , Substitutos da Gordura/química , Mangifera/química , Óleos de Plantas/química , Sementes/química , Triglicerídeos/química , Cacau/química , Tecnologia de Alimentos , Temperatura Alta , Óleo de Palmeira , Temperatura de Transição
2.
Waste Manag ; 31(4): 754-66, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21186116

RESUMO

The management of clinical solid waste (CSW) continues to be a major challenge, particularly, in most healthcare facilities of the developing world. Poor conduct and inappropriate disposal methods exercised during handling and disposal of CSW is increasing significant health hazards and environmental pollution due to the infectious nature of the waste. This article summarises a literature review into existing CSW management practices in the healthcare centers. The information gathered in this paper has been derived from the desk study of open literature survey. Numerous researches have been conducted on the management of CSW. Although, significant steps have been taken on matters related to safe handling and disposal of the clinical waste, but improper management practice is evident from the point of initial collection to the final disposal. In most cases, the main reasons of the mismanagement of CSW are the lack of appropriate legislation, lack of specialized clinical staffs, lack of awareness and effective control. Furthermore, most of the healthcare centers of the developing world have faced financial difficulties and therefore looking for cost effective disposal methods of clinical waste. This paper emphasizes to continue the recycle-reuse program of CSW materials after sterilization by using supercritical fluid carbon dioxide (SF-CO2) sterilization technology at the point of initial collection. Emphasis is on the priority to inactivate the infectious micro-organisms in CSW. In that case, waste would not pose any threat to healthcare workers. The recycling-reuse program would be carried out successfully with the non-specialized clinical staffs. Therefore, the adoption of SF-CO2 sterilization technology in management of clinical solid waste can reduce exposure to infectious waste, decrease labor, lower costs, and yield better compliance with regulatory. Thus healthcare facilities can both save money and provide a safe environment for patients, healthcare staffs and clinical staffs.


Assuntos
Meio Ambiente , Instalações de Saúde , Eliminação de Resíduos de Serviços de Saúde/métodos , Saúde Pública , Poluição Ambiental/análise , Poluição Ambiental/prevenção & controle , Humanos , Eliminação de Resíduos de Serviços de Saúde/economia , Eliminação de Resíduos de Serviços de Saúde/legislação & jurisprudência , Esterilização/economia , Esterilização/legislação & jurisprudência , Esterilização/métodos
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