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The 2  International Seminar of Science and Technology
                                    nd
                                   “Accelerating Sustainable innovation towards Society 5.0”
                                                       ISST 2022 FST UT 2022
                                                          Universitas Terbuka
          meal,  this  approach  is  more  cost-effective,  eco-friendly,  and  safe.
          During  the  early  phase  of  the  present  work,  the  biochemical  and
          microbiological features of fish waste were analysed (Table. 1). The
          fish waste utilized for this project had a tolerable amount of fishy odor
          and its form.
            Table 1. Biochemical and microbial changes in 30 % Rice bran
                        packed powder silage during storage
          Parameter                        Days
                             0         30         60         90
          Crude Protein   27.66 ±    27.31 ±    27.16 ±    27.04 ±
          (%)               0.10      0.11       0.33       0.06
          Fat (%)          14.45±    14.16±     13.83±   13.42± 0.10
                            0.11      0.07       0.08
          Moisture (%)     10.91±    10.99±     11.06    11.15± 0.10
                            0.14      0.10      ±0.18
          Ash (%)          15.27±    15.07±     14.87±   14.6 ± 0.09
                            0.11      0.08       0.06
          Fiber (%)      9.89±0.06  9.84±0.06  9.75±0.13  9.64±0.07
          Carbohydrate     21.82      22.21     22.64    23.14 ±0.11
          (%)              ±0.07      ±0.08     ±0.13
          pH             6.45± 0.05  6.48±0.09  6.53 ±0.10  6.59 ±0.14
          TPC (cfu/g)    2.10×104  2.15×104  2.25×104     2.36×104
          (Log value)      (4.32)     (4.33)    (4.35)     (4.37)
          Source: Parkar et al., (2018)

          2.2   Derived products that are turned into fishmeal and fish oil
          Since the aquaculture sector, which is developing quickly, is by far the
          biggest  consumer  of  these  goods,  using  by  products  by  making
          fishmeal, fish protein hydrolysates, and fish oil is a side way of making
          healthy food available [10]. Fishmeal and fish oil prices have risen in
          recent years, suggesting that consumers may no longer view these
          items as low-quality [28]. By-products were the source of the available
          fishmeal in 2007, but according to previous estimates, in 2010, this
          percentage grew to 36% [10]. The heated raw materials are initially


          120                          ISST 2022 – FST Universitas Terbuka, Indonesia
                    International Seminar of Science and Technology “Accelerating Sustainable
                                                         Towards Society 5.0
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