Substitusi Minyak Jagung dengan Minyak Sawit Merah dalam Produksi Susu Bubuk Rekombinasi: Pengaruhnya pada Sifat Fisik dan Gizi

A research on substitution of milk fat with red palm oil in Milk Powder (MP) production has been conducted. The aim of this research was to investigate the effects of corn oil substitution with red palm oil on physical, chemical and nutritional properties of the recombined milk powder (RMP). Pre-formulated milk powder (PMP) was prepared by mixing of corn oil, skim milk powder, stabilizer and water followed by filtering, preheating, homogenization and spray drying. The corn oil was substituted with 0, 25, 50, 75 and 100% of red palm oil (RPO-0, RPO-25, RPO-50, RPO- 75 and RPO-100). RMP formula were prepared as a commercial milk powder formula with protein and fat content of 20% and 18%, respectively. Chemical and physical properties of the RMPs were analyzed. The RMPs were then reconstituted and sensory character as well as nutritional properties was examined. The result showed that substitution of 50% corn oil with red palm oil resulted in a red palm oil milk powder (RPOMP) similar to the corn oil milk powder (control milk powder) in term of panelist acceptability. This RPOMP have a higher wet ability and solubility index but lower dispersibility and similar density to the control milk powder. The RPOMP contain a lower total and beta carotene content but higher tocoferol content than the control milk powder. Spray drying in the pre-formulated milk powder processing decrease 90% of carotene content of the pre-formulated milk powder but the tocoferol content was not affected by the process. In Wistar rats, consumption of RPOMP for 4 weeks had no effects on the lipids profiles

Evaluasi Potensi Kecap Manis sebagai Pembawa Fortifikan NaFeEDTA: Tinjauan Pengaruh Asupan Kecap Kedelai Manis Hasil Fortifikasi terhadap Peningkatan Bioavailabilitas Zat Besi Fortifikan

Pengaruh kecap manis sebagai makanan pembawa terhadap peningkatan bioavailabilitas zat besi fortifikan �aFeEDTA, dievaluasi secara in vivo, untuk mengetahui potensi kecap manis sebagai pembawa fortifikan tersebut. Bioavailabilitas ditentukan pada tikus Sprague-Dawley, menggunakan metoda deplesi-replesi hemoglobin. Selama periode replesi, ti- kus yang sebelumnya dibuat anemia, diberi asupan NaFeEDTA (0,35 mg Fe/ekor/hari) sebagai sumber zat besi tunggalselama 14 hari, dengan kecap sebagai pembawa fortifikan. Volume asupan kecap bervariasi, dari 0,0 sampai dengan0,7 mL kecap/ekor/hari. Sebagai pembanding, digunakan sumber zat besi berupa fortifikan standar FeSO .7H O (0,3542mg Fe/hari) dengan H O sebagai pembawa. Bioavailabilitas zat besi dinyatakan sebagai nilai hemoglobin regenerationefficiency (HRE). Volume asupan kecap yang menghasilkan bioavailabilitas yang sama dengan standar FeSO .7H O,42digunakan dalam percobaan selanjutnyanya. Percobaan selanjutnya dilakukan untuk mengevaluasi bioavailabilitas zatbesi NaFeEDTA dengan dosis asupan yang bervariasi (dari 0,175 sampai dengan 1,40 mg Fe/ekor/hari), namun dengan volume pembawa yang tetap (0,2 mL/ekor/hari). Pembawa berupa kecap manis atau H O, sebagai kontrol. Sebagai standar, dipakai FeSO .7H O (0,35 mg Fe/ekor/hari), dengan H O sebagai pembawa. Bioavailabilitas zat besi diten-422tukan dengan metoda deplesi-replesi hemoglobin dan dinyatakan sebagai nilai HRE, absorpsi, dan retensi zat besi. Hasil penelitian menunjukkan bahwa kecap kedelai manis terbukti potensial sebagai pembawa fortifikan �aFeEDTA. Asupan 0,2 mL kecap manis/ekor/hari dapat menghasilkan HRE zat besi fortifikan �aFeEDTA yang sama besar den- gan HRE fortifikan standar. Dibanding dengan kontrol (H O), kecap sebagai makanan pembawa mampu menghasilkanHRE, absorpsi, dan retensi zat besi yang lebih besar. Sementara itu, asupan NaFeEDTA yang makin meningkat dapat menurunkan HRE, A/I, dan R/I yang diperoleh

Sifat Prooksidatif Fortifikan NaFeEDTA Dan Fe-SULFAT Pada Kecap Hasil Fortifikasi

Iron in iron-fortified soy sauce may have oxidative effect in both oil and amino acids or protein component. In order to evaluate the possible oxidative properties of both NaFeEDTA and FeSO fortificants, a study of oxidation in soy sauce fortified with the fortificants was conducted. Level of fortificant was 266 mg Fe/L of soy sauce. The extent of oxidation was measured by the level of peroxide value and TBARS value of oil component of fortified soy sauce, as well as car- bonyls content of soy sauce model. The effect of H O addition on level of oxidation was also evaluated. It was found that in soy sauce fortified with either NaFeEDTA or FeSO , the fortificants did not promote oxidation of oil and amino acids components. However, addition of H O made peroxide value, TBARS value, and carbonyls content of fortified samples increased

Substitusi Minyak Jagung dengan Minyak Sawit Merah dalam Produksi Susu Bubuk Rekombinasi: Pengaruhnya pada Sifat Fisik dan Gizi

A research on substitution of milk fat with red palm oil in Milk Powder (MP) production has been conducted. The aim of this research was to investigate the effects of corn oil substitution with red palm oil on physical, chemical and nutritional properties of the recombined milk powder (RMP). Pre-formulated milk powder (PMP) was prepared by mixing of corn oil, skim milk powder, stabilizer and water followed by filtering, preheating, homogenization and spray drying. The corn oil was substituted with 0, 25, 50, 75 and 100% of red palm oil (RPO-0, RPO-25, RPO-50, RPO- 75 and RPO-100). RMP formula were prepared as a commercial milk powder formula with protein and fat content of 20% and 18%, respectively. Chemical and physical properties of the RMPs were analyzed. The RMPs were then reconstituted and sensory character as well as nutritional properties was examined. The result showed that substitution of 50% corn oil with red palm oil resulted in a red palm oil milk powder (RPOMP) similar to the corn oil milk powder (control milk powder) in term of panelist acceptability. This RPOMP have a higher wet ability and solubility index but lower dispersibility and similar density to the control milk powder. The RPOMP contain a lower total and beta carotene content but higher tocoferol content than the control milk powder. Spray drying in the pre-formulated milk powder processing decrease 90% of carotene content of the pre-formulated milk powder but the tocoferol content was not affected by the process. In Wistar rats, consumption of RPOMP for 4 weeks had no effects on the lipids profiles

Electric feedback cooling of single charged nanoparticles in an optical trap

We demonstrate feedback cooling of the center-of-mass motion of single charged nanoparticles to millikelvin temperatures in three dimensions via applying oscillating electric fields synchronized to their optically observed motion. The observed motional temperatures at weak feedback agree with a simple model and allow us to estimate the charge number of trapped nanoparticles. The agreement between our model and experiments is confirmed by independent measurements of the charge numbers based on a shift in the oscillation frequency induced by a constant electric field. The demonstrated temperature of below 10 mK at $4 \times 10^{-3}$ Pa is lower than that with the conventional optical cooling approach at this pressure by one to two orders of magnitude. Our results form the basis of manipulating cold charged nanoparticles and paves the way to quantum mechanical studies with trapped nanoparticles near their ground state.Comment: 6 pages, 5 figure

Sifat Prooksidatif Fortifikan NaFeEDTA, Dengan Kecap Kedelai Manis Sebagai Makanan Pembawa, Dalam Sistem Biologis (Tikus)

In vivo study about the effect of NaFeEDTA fortificant in sweet soy sauce on TBARS value of plasma and liver, as well as on histopathologic changes of liver, intestine, and stomach of Sprague Dawley rats was conducted. The oxida- tive properties were determined using hemoglobin depletion-repletion method. During 42 days of repletion periode, iron-depleted rats were fed iron-free diet. NaFeEDTA was ingested in varied dosage, i.e. from 0.175 to 1.4 mg Fe/day for each rat. Sweet soy sauce H O (0.2 mL/day) was used as fortification vehicle and H O (0.2 mL/day) as a control.22FeSO .7H O fortificant (0.35 mg Fe/day, with H O as vehicle) was used as reference standard. At the end of the reple-422tion period, TBARS value of either plasma or liver was analized. The histopathologic changes of liver, intestine, and stomach were also evaluated. The data showed that NaFeEDTA fortificant in sweet soy sauce had no effect on TBARS value of plasma, but it resulted in increased TBARS value of liver. The histopathologic data showed that NaFeEDTA intake up to 0.35 mg Fe/day did not result in histopathologic changes of liver, intestine, and stomach, as well

Experimental Signature of Medium Modifications for rho and omega Mesons in the 12 GeV p + A Reactions

The invariant mass spectra of e+e- pairs produced in 12-GeV proton-induced nuclear reactions are measured at the KEK Proton-Synchrotron. On the low-mass side of the omega meson peak, a significant enhancement over the known hadronic sources has been observed. The mass spectra, including the excess, are well reproduced by a model that takes into account the density dependence of the vector meson mass modification, as theoretically predicted.Comment: 4 pages, 3 figures, Version accepted for Physical Review Lette

Search for Λ6^6_\LambdaH hypernucleus by the 6^6Li(π−,K+)(\pi^-,K^+) reaction at pπ−p_{\pi^-} = 1.2 GeV/cc

We have carried out an experiment to search for a neutron-rich hypernucleus, $^6_{\Lambda}$H, by the $^6$Li($\pi^-,K^+$) reaction at $p_{\pi^-}$ =1.2 GeV/$c$. The obtained missing mass spectrum with an estimated energy resolution of 3.2 MeV (FWHM) showed no peak structure corresponding to the $^6_{\Lambda}$H hypernucleus neither below nor above the $^4_{\Lambda}$H$+2n$ particle decay threshold. An upper limit of the production cross section for the bound $^6_{\Lambda}$H hypernucleus was estimated to be 1.2 nb/sr at 90% confidence level.Comment: 6 pages, 5 figures, published versio