Breaking strength studies

An investigation was conducted to determine to what extent the differences observed between the four 150° SAG pectins used in the breaking strength study could be attributed to differences in molecular weight. 

Gel Permeation Chromatography studies were conducted by the Food R. A. on the four pectins used in the Breaking Strength study. Using the results of duplicate runs for the four samples, the distribution coefficients (K) were calculated for each run giving the following results ... 

Meat and such high protein plant foods as soy are excellent sources of phosphorus as well as protein. The phosphorus in meat is readily absorbed from the gastrointestinal tract however, much of the phosphorus in plant products is in a bound form which may inhibit the absorption of calcium as well as phosphorus. This study was designed to determine the effect of different levels of calcium and phosphorus with plant protein or animal protein on bone breaking strength and calcium and phosphorus utilization of weanling mice. 

In-Vivo Absorption and breaking strength retention studies. For comparing PDS monofilament in-vivo properties with copolymeric fibers, a second 90/10 PDO/glycolide copolymer (II-A) was prepared and processed following similar schemes to those used for copolymer II. 

Ethylene oxide sterilized laonofilaments of copolymer II-A and a poly(p-dioxanone) were compared in terms of their in-vivo absorption and BSR (breaking strength retention) profiles. The BSR and absorption studies were conducted in rats according to the procedures described elsewhere. The comparative data of these studies are given in Table V. 

Figure 1). The light exposed control fabric showed a loss in breaking strength of 2% at 80 AFU, 8% at 160 AFU and 13% at 640 AFU. Thus, breaking strength loss for the control fabric was not as severe as expected from previous studies (, 21). 

Standard apple jellies were prepared having a soluble solids of 65% and a pH of 3.15. Five commercial citrus pectins standardized to 150° SAG were used in the study. Pectin dosage was varied between 0.1% and 0.5%. The resulting jellies were tested for Breaking Strength or internal strength on the Voland Stevens Tester. The results are shown in Figure 6. 

In a study by Carpenter and co-workers, three polymers (I, III, and IV) were made using TMP to prepare the respective polymeric initiators, as described in Section 3.23P In an effort to produce compliant monofilaments, these polymers were extruded to monofilaments and processed under slightly different conditions from those used in preparing their counterparts in section 3.2.3. One of the polymers (I) was used to prepare a second set of monofilaments for studying the effect of radiation dose, under a typical radiochemical sterilization process (RC-S) on their in vitro breaking strength retention (BSR). 

The influence of RH on stress-strain properties of cotton and ramie at a constant temperature (21°C) has been studied [113]. The breaking strength and strain of cotton are considerably reduced at lower values of RH however, the initial elastic modulus increases. In the case of ramie, the breaking strain decreases, the initial elastic modulus increases, and the strength remains unaltered as the RH decreases. 

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