+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Evaluation of porcine fat with fiber-optic spectroscopy

, : Evaluation of porcine fat with fiber-optic spectroscopy. Journal of Animal Science 77(10): 2680-2684

Spectroscopy using four types of fiber-optic probes and a sensor at wavelengths of 400 to 1,100 nm was evaluated to assess porcine fat quality. The shapes of the spectrum for the leaf fat with white color and various firmnesses differed with the type of probe: surface, contact, insertion, or transmittance. The internal reflectance ratio using the insertion probe at wave-lengths from approximately 600 to 1,000 nm was positively correlated with the hardness, melting point, and saturated fatty acid content of the fat, but it was negatively correlated with the refractive index and polyunsaturated fatty acid content. The correlations between the internal reflectance ratio using the insertion probe and the monounsaturated fatty acid content were strong only near 1,100 nm. Surface reflectance at more than 650 nm was negatively correlated with refractive index. Transmittance at almost all wavelengths showed positive correlations with monounsaturated fatty acid content, but it was negatively correlated with hardness, melting point, and saturated fatty acid content. The interactance using the contact probe did not have a significant correlation with any physiochemical characteristics. The strongest relationships for hardness, refractive index, saturated fatty acid content, monounsaturated fatty acid content, polyunsaturated fatty acid content, and melting point were obtained at 650 nm (r = .88), 660 nm (r = -.91), 645 nm (r = .73), 1,095 nm (r = .68), and 930 nm (r = -.76), respectively, using the insertion probe and 1,050 nm (r = -.79) using the transmittance probe (P < .05). These results indicated that fiber-optic methods were rapid and useful techniques for the evaluation of porcine fat quality.


PMID: 10521027

Other references

Quiñones-Molina, R.; Alaminos, A.; Molina, H.; Muñoz, J.; López, G.; Alvarez, L.; Ortega, I.; Piedra, J.; Soler, W.; Torres, A., 1994: Computer-assisted CT-guided stereotactic biopsy and brachytherapy of brain tumors. From March 1991 to September 1993, 26 patients (aged 4-78 years) with brain tumors (4 glioblastoma multiforme, 10 nonglioblastoma multiforme, 1 mixed oligoastrocytoma, 2 carniopharyngiomas, 2 meningiomas and 7 metastases) were treated with stereot...

B.U. Ö Sonnerup; L.J.C.hill Jr., 1967: Magnetopause structure and attitude from explorer 12 observations. Journal of Geophysical Research 72(1): 171

Strunge, Tage, 1945: Histotopography of the pyloro-duodenal glands. Esophagus, stomach, and duodenum were examined, some with binocular dissecting microscope, in 10 human fetuses (2.1 to 7 lunar months), 3 children, and 10 adults with no digestive trouble. Fixation, often a few mins. after death, was by intraabdom...

Ozawa S.; Izaka K.; Katoh K.; Kurai R.; Someya M.; Matsusoka A.; Yada H.; Takekoshi T.; Takagi K., 1990: Endoscopic resection of early gastric cancer discovered by medical practitioners. Early gastric cancer (EGC) which was discovered and discussed at an endoscopic training meeting was treated by endoscopic resection (ER). Twenty eight cases of EGC were treated by ER using two channel fiberscope from 1979 to June 1987. Age distrib...

Holtorf, H.L.; Jansen, J.A.; Mikos, A.G., 2005: Ectopic bone formation in rat marrow stromal cell/titanium fiber mesh scaffold constructs: effect of initial cell phenotype. Titanium fiber mesh scaffolds have been shown to be a suitable material for culture of primary marrow stromal cells in an effort to create tissue engineered constructs for bone tissue replacement. In native bone tissue, these cells are known to at...

Orita, H.; Nakamura, I.; Fujitani, T., 2005: A density functional study of NO adsorption and decomposition on Ni(211) and Pd(211) surfaces. The adsorption and decomposition of NO have been investigated by using density functional theory method at the generalized gradient approximation level. We have performed calculations on adsorption energies and structures of NO on Ni(211) and Pd(2...

Petersen, B.; Yee, C.J.; Bowen, W.; Zarnegar, R.; Michalopoulos, G.K., 1994: Distinct morphological and mito-inhibitory effects induced by TGF-beta 1, HGF and EGF on mouse, rat and human hepatocytes. TGF-beta 1 is known as a potent inhibitor of proliferation of rat and human hepatocytes. In this study we show that the effects of TGF-beta 1 are quite different on mouse hepatocytes. In rat and human hepatocytes, TGF-beta 1 inhibited DNA synthesi...

Strukov, A.I.; Petrov, V.I.; Smetnev, A.S.; Fedorova, T.A.; Biriukov, I.V., 1976: Role of microcirculation in the development of pulmonary hypertension in chronic non-specific lung diseases. A comparison of the results of morphological studies of pulmonary and pleural microcirculation with the indices of haemodynamics in the system of the pulmonary artery in patients with chronic non-specific lesions of the lungs accompanied by suppur...

Dansby-Kelly, A.F., 2010: Managing the care of the obese ophthalmic patient. Insight 34(4): 14-7; Quiz 18

Levine, B.D., 2015: Response to the Letters Regarding Article, "Can Intensive Exercise Harm the Heart? The Benefits of Competitive Endurance Training for Cardiovascular Structure and Function". Circulation 131(23): E525-E525