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단감분말을 함유한 저지방 돈육 미트패티의 냉동 저장 중 품질 변화
김일석,진상근,하창주,Kim, Il-Suk,Jin, Sang-Keun,Ha, Chang-Ju 한국축산식품학회 2008 한국축산식품학회지 Vol.28 No.2
Pork patties were made containing hot air dried sweet persimmon powder (T1: 3%, T2: 6%) and freezer dried sweet persimmon powder (T3: 3%, T4: 6%). The control (C: no addition) and each treatment were stored for 40 days at $-18^{\circ}C$. The pH value decreased (p<0.05) in all products over 30 days of storage but slightly increased thereafter. There was no significant difference in WHC between the control and treatment groups. Cooking loss and meat color (CIE L, a, b) increased significantly (p<0.05) as storage increased. The cooking loss of meat patties containing sweet persimmon powder were significantly (p<0.05) higher than the control. The L value of the control increased significantly (p<0.05) relative to the treatment groups, however the a and b values were slightly higher in meat patties containing sweet persimmon powder. In all products, the reduction ratio of diameter increased (p<0.05) with storage time. With regard to microorganisms, all samples were in good condition, containing below 4.20 log CFU/g based on total plate counts through 40 days, though total plate counts and coliform plate counts of the control were lower (p<0.05) than T3 and T4. The VBN values of T4 was significantly higher than those of other products at 15, 30, and 40 days of storage. The TBARS values of meat patties containing sweet persimmon powder were significantly (p<0.05) higher than those of the conlIol. Sensory panels determined that meat patties containing sweet persimmon powder had a higher (p>0.05) preference score for overall acceptability.
밤의 부위별 발효사료 제조 및 이들의 반추위 내 발효특성에 관한 연구
주영호 ( Young-ho Joo ),김동현 ( Dong-hyeon Kim ),이혁준 ( Hyuk-jun Lee ),이성신 ( Seong-shin Lee ),( Dimas H V Paradhipta ),하창주 ( Chang-ju Ha ),김삼철 ( Sam-churl Kim ) 한국환경과학회 2019 한국환경과학회지 Vol.28 No.6
The aim of present study was to investigate the effect of three types of Chestnut Meals (CM) on chemical composition and rumen fermentation characteristics of the fermented diet. The inoculants consisted of Lactobacillus acidophilus, Bacillus subtilis, and Sacaromyces cerevisiae and were applied to three different types of CM; Whole Chestnut (WC), endodermis (EN), and kernel (KE). All types of CMs were ensiled at 39°C for 0, 1, 2, 4, or 6 days. After ensiling, the fermented CMs were sub-sampled for laboratory assays. On day six of fermentation, counts of the lactic acid-producing Bacillus subtilis, and yeast were higher (P<0.05) in WC than in the other CM types. On day four, KE had higher (P<0.05) crude protein content but lower (P<0.05) neutral detergent fiber and acid detergent fiber contents than the other treatments. In terms of rumen digestibility, KE had the highest (P<0.05) in vitro digestibility of dry matter (IVDMD), neutral detergent fiber digestibility (IVNDFD), total volatile fatty acid (VFA), propionate, butyrate concentrations, and total gas volume, as well as the lowest (P<0.05) acetate concentration. On the other hand, EN had the highest (P<0.05) pH and ammonia-N concentration in the rumen. In the rumen, even though WC application produced the highest microbial count and fermentation characteristics, it did not have a beneficial effect on rumen digestibility. Therefore, this study concluded that application of KE could be recommended due to the observed improvements in IVDMD and IVNDFD.