Results are presented of the effect of freezing followed by thawing (air and water immersion, both at environmental temperature) and cooking (traditional boiling in a covered pot) on quality profile (in terms of objective texture, colour, chlorophylls and pheophytins and sensory attributes) and structure of green beans (cv. Win). Freezing was carried out at three different rates by forced conve...

Legume seeds stored under high temperature and humidity develop a texture defect known as hard-tocook (HTC). Structural and histochemical characteristics of normal and HTC beans (Phaseolus vulgaris) were studied after storing them at 5°C/40% relative humidity (RH) or 40°C/75% RH for 60 days. Cotyledonary cells of HTC beans showed contraction of the cell content, whereas the cytoplasm of normal ...

OBJECTIVE Identify the content of selected phytochemicals (PHYs) in Mexican foods and evaluate the reliability of a food frequency questionnaire (FFQ) in assessing PHYs intake among Mexican women. MATERIAL AND METHODS Values for PHYs content were obtained from four different data sets. PHYs intake was assessed in 50 women of reproductive age enrolled in a longitudinal cohort study. Values wer...

ABSTRACT A multiplex real-time polymerase chain reaction (PCR) assay was developed to simultaneously genotype plants for the I and bc-1(2) alleles, which condition resistance in beans to Bean common mosaic virus and Bean common mosaic necrosis virus. A segregating F(2) population was derived from the cross between pinto bean breeding line P94207-189A (bc-1 bc-1 I I) and Olathe (bc-12 bc-1(2) i ...

Papain is a proteolytic enzyme used in topical formulations for peeling and treatment of burns, wounds and scars. It is also used as progressive depilatory agent and as cutaneous absorption enhancer. This work was aimed at validating a spectrofluorimetic method to quantify the activity of papain in semisolid pharmaceutical dosage forms. Benzyloxycarbonyl-phenylalanyl-arginine 7-amido-4-methylco...

The expression of phaseolin and phytohemagglutinin (PHA) in the developing cotyledons of a normal (Greensleeves) and a PHA-deficient (Pinto 111) cultivar of Phaseolus vulgaris was investigated. Phaseolin mRNA translational activity and abundance were present at similar levels in both cultivars. In contrast, PHA mRNA translational activity and abundance in Pinto 111 were less than 1% of the leve...

This study aimed to evaluate by the intra-osseous implant technique the most commonly used materials for pulp therapy in pediatric dentistry: calcium hydroxide (CH), Guedes Pinto paste and CTZ paste, according to FDI (1980) and ANSI/ADA (1982) recommendations. Thirty guinea pigs, 10 for each material, divided into experimental periods of 4 and 12 weeks received one implant on each side of the l...

Margaritis, L. H., Elgsaeter, A. & Branton, D. (1977) J . Cell Biol. 72, 47-56 Moor, H. (1966) Int. Rev. Exp. Path. 5 , 179-216 Moor, H. (1971) Phil. Trans. R . SOC. London Ser. B261,121-131 Nicolson, G. L. (1974) Int. Rev. Cytol. 39, 89-190 Pfenninger, K. H. & Rinderer. E. R. (1 975) J. Cell Biol. 65, 15-28 Pinto da Silva, P. & Branton, D. (1970) J. Cell Bio/. 45,598-605 Pinto da Silva, P. & B...

Common bacterial blight (CBB) caused by Xanthomonas campestris pv. phaseoli reduces common bean (Phaseolus vulgaris L.) yield and quality worldwide. Genetic resistance provides effective disease control; however, a high level of resistance is difficult to attain and does not exist in pinto bean, the most important dry bean market class in North America. Our objective was to determine if a backc...