Effect of triglycerides containing 9,10-dihydroxystearic acid on polymorphism of sal (Shorea robusta) fat
IR@CFTRI: CSIR-Central Food Technological Research Institute, Mysore
View Archive Info| Field | Value | |
| Relation |
http://ir.cftri.com/2389/
JAOCS-01-89 |
|
| Title |
Effect of triglycerides containing 9,10-dihydroxystearic acid on polymorphism of sal (Shorea robusta) fat
|
|
| Creator |
Yella Reddy, S.
Prabhakar, J. V. |
|
| Subject |
19 Lipids-oils/fats
|
|
| Description |
Sal (Shorea robusta) fat comprises mostly 2-oleodisaturated triglycerides and has good potential for use in chocolate and confectionery. One major problem is the inconsistency in solidification properties of sal fat. This work examined the effect of 2, 5, 8 and 10% of triglycerides containing 9,10-dihydroxystearic acid (DHS-TG) on phase transition of polymorphic forms of normal triglycerides (TG) of sal fat, using differential scanning calorimetry, under various cooling and heating regimes (rapid cooling at 20 degree C/min to -30 degree C, with crystals generated being heated immediately at 1.25-10 degree C/min to obtain fusion enthalpy curves; slow cooling at 2 degree C/min to -30 degree C and crystal heating at 10 degree C/min; tempering at 0 degree C for 18 h and at 0 degree C for 1 h, followed by 26 degree C for 3 h, with crystals heated at 10 degree C/min). DHS-TG accelerated phase transition of lower melting crystal forms I to II to III of TG obtained on cooling. DHS-TG delayed phase transition of crystal form III to IV of TG at 0 degree C and reduced the heat of fusion of the stable form (V) of TG obtained by tempering at 0/26 degree C.
|
|
| Date |
1989
|
|
| Type |
Article
PeerReviewed |
|
| Identifier |
Yella Reddy, S. and Prabhakar, J. V. (1989) Effect of triglycerides containing 9,10-dihydroxystearic acid on polymorphism of sal (Shorea robusta) fat. Journal of the American Oil Chemists' Society, 66 (6). pp. 805-808. ISSN 0011-3891
|
|