RESUMEN
The starch extracted from avocado (Persea americana L. cv. Hass) seeds was characterized and used in the preparation of an edible coating to reduce the oil uptake and acrylamide content in French fries. Starch characterization was carried out using Differential Scanning Calorimetry, Fourier transform infrared spectrophotometry, gelatinization, and scanning electron microscopy. Uncoated (UFF) and coated (CFF) French fries were compared and evaluated for moisture, water activity (Aw), fat, color, firmness, acrylamide content, and sensorial analysis. The extracted starch presented a high crystalline structure and good stability to mechanical work and heat treatments. The CFF French fries showed significantly higher Aw, color parameter a*, but lower luminosity and acrylamide content than UFF samples. Similarly, the CFF samples tended to decrease the fat content, although without statistical differences. Avocado seed starch can be an economical and technically feasible alternative to the food industry as an effective coating to reduce acrylamide content in French fries.
RESUMEN
Perioperative morbidity and mortality were studied in 145 patients who underwent radical hysterectomy wit pelvic lymphadenectomy, as treatment of choice for cervical cancer, stages Ib and IIa at The Oncology Service on The General Hospital of México, SSA, with special emphasis in urinary complications when superior bladder arteries were preserved, (99 cases) or not, (46 cases). There was no operative death. There were 20, (13.7%) intraoperative complications: 10 (6.8%) injuries to hypogastric plexus; 5 (3.4%) ureteral sections and 2 (1.3%) injuries to iliac veins. Thirty nine patients, (26.8%) developed postoperative complications, (1 to 30 days): Bladder dysfunction, 30 (20.6%); wound infection, 5 (3.4%); ureterovaginal fistula, 3 (2.0%) and vesicovaginal fistula, 3 (2.0%). After 30 days, we observed 5 complications, (3.4%): ureterovaginal fistula, 3 (2.0); bowel obstruction, 1 (0.6%) and lymphocyst, 1 (0.6%). Surgical time was an hour longer, (4.15 hs vs. 3.15 hs) and bleeding increased a little bit, (1,125 c.c. vs. 980 c.c.) when superior bladder arteries were preserved. However, in these cases, there were less postoperative complications, (29/99, 29.2% vs. 19/46, 41.3%; P < 0.05), including ureterovaginal fistula, (1/99, 1.0% vs. 5/46, 10.8%).