This study analyzed the quality characteristics of Soksungjang combined with sorghum koji, according to the amount of sorghum added and the length of the fermentation period. The moisture content of Soksungjang was the lowest in the control group when there was no sorghum koji added, but gradually increased as the amount of added sorghum koji increased. The reduction in the sugar content of sorghum Soksungjang did not change according to the fermentation period of the control group, but increased alongside the fermentation period when sorghum koji was added to Soksungjang. The amino nitrogen content increased from 67.20-80.73 mg% from the beginning of the fermentation period to 173.13-383.60 mg% at the end of the fermentation period, and the total polyphenol content increased from 260.25-351.28 mg% from the beginning of the fermentation period to 567.28 mg%-674.93 mg% to the end of the fermentation period. DPPH radical scavenging activity also increased as the fermentation period elapsed, and ABTS radical scavenging activity increased and then decreased slightly over the fermentation period. The antioxidant activity was the highest in the Soksungjang mixture with a 10% concentration of sorghum koji.

Abstract
서 론
재료 및 방법
    1. 수수 속성장 제조방법
    2. 추출방법
    3. 수분함량, pH, 총산, 환원당 측정
    4. 색도 분석
    5. 아미노태 질소 측정
    6. 총폴리페놀 함량
    7. DPPH 라디컬 소거능
    8. ABTS 라디칼에 대한 전자공여능 측정
    9. 향기성분 분석
    10. 통계처리
결과 및 고찰
    1. 수수 속성장의 수분함량, pH 및 총산, 환원당 변화
    2. 색도 변화
    3. 아미노태질소 함량
    4. 총폴리페놀 함량
    5. 항산화성
    6. 향기성분 분석
요약 및 결론
References

• 윤향식(충청북도농업기술원) | Hyang-Sik Yoon (Chungcheongbukdo Agricultural Research and Extension Services) Corresponding author
• 송용섭(충청북도농업기술원) | Yong-sup Song (Chungcheongbukdo Agricultural Research and Extension Services)
• 김영호(충청북도농업기술원) | Youngho Kim (Chungcheongbukdo Agricultural Research and Extension Services)
• 김인재(충청북도농업기술원) | In Jae Kim (Chungcheongbukdo Agricultural Research and Extension Services)
• 김소영(국립농업과학원 농식품자원부) | So-Young Kim (Dept. of Agro-Food Resources, NAAS, RDA)
• 엄현주(충청북도농업기술원) | Hyun-Ju Eom (Chungcheongbukdo Agricultural Research and Extension Services)
• 강혜정(충청북도농업기술원) | Hye Jeong Kang (Chungcheongbukdo Agricultural Research and Extension Services)