Comparison of different drying technologies for kiwifruit pomace: Changes in physical characteristics, nutritional properties and antioxidant capacities.

The objective of this study was to evaluate the impacts of different drying technologies including microwave drying (MD), vacuum microwave drying (VMD), sun drying (SD), vacuum drying (VD), hot air drying (HAD), and vacuum freeze drying (VFD) on the physical characteristics, nutritional properties and antioxidant capacities of kiwifruit pomace in order to realize by-product utilization and improve energy efficiency. Results showed that both MD and VMD significantly reduced drying time by >94.6%, compared to traditional thermal drying which took 14-48 h. MD exhibited the highest content of soluble dietary fiber (9.5%) and the lowest energy consumption. Furthermore, VMD resulted in the highest content of vitamin C (198.78 mg/100 g) and reducing sugar (73.78%), and the antioxidant capacities ranked only second to VFD. Given the financial advantages and product quality, VMD was suggested to be advantageous technology in actual industrial production.

Antioxidant Dipeptides Enhance Osmotic Stress Tolerance by Regulating the Yeast Cell Wall and Membrane.

This study aimed to investigate the role of the yeast cell wall and membrane in enhancing osmotic tolerance by antioxidant dipeptides (ADs) including Ala-His (AH), Thr-Tyr (TY), and Phe-Cys (FC). Results revealed that ADs could improve the integrity of the cell wall by restructuring polysaccharide structures. Specifically, FC significantly (p < 0.05) reduced the leakage of nucleic acid and protein by 2.86% and 5.36%, respectively, compared to the control. In addition, membrane lipid composition played a crucial role in enhancing yeast tolerance by ADs, including the increase of cell membrane integrity and the decrease of permeability by regulating the ratio of unsaturated fatty acids. The up-regulation of gene expression associated with the cell wall integrity pathway (RLM1, SLT2, MNN9, FKS1, and CHS3) and fatty acid biosynthesis (ACC1, HFA1, OLE1, ERG1, and FAA1) further confirmed the positive impact of ADs on yeast tolerance against osmotic stress.

Paralysis of the lower limbs caused by spontaneous spinal epidural hematoma: A case report.

INTRODUCTION AND IMPORTANCE: Spontaneous spinal epidural hematoma (SSEH) is a rare surgical emergency, often with acute onset, causing severe spinal cord injury. This report presents a case of SSEH treated by surgery to enhance understanding of this disease. CASE PRESENTATION: A 76-year-old male patient sought medical care for unexplained sudden chest and back pain and paralysis of both lower extremities. Magnetic resonance imaging (MRI) confirmed the occupation of thoracolumbar spinal canal. The blood clot was completely removed by emergency surgery, and then the neurological function recovered. CLINICAL DISCUSSION: Spontaneous spinal epidural hematoma is an uncommon disease, its acute onset, resulting in difficult to recover spinal cord injury, or even permanent paralysis. Therefore, early diagnosis and early operation are the key to the protection of neurological function. CONCLUSIONS: Surgical intervention is the first choice for treatment, especially in acute and subacute spontaneous spinal epidural hematoma. Once diagnosed, and there are no contraindications, it is recommended to remove and decompress the hematoma as soon as possible.