NDLI: Case Study: Commercialization of Sweet Sorghum Juice Clarification for Large-Scale Syrup Manufacture

Content Provider	Springer Nature Link
Author	Eggleston, Gillian Heckemeyer, Matthew Cyr, Eldwin St. Wartelle, Lynda
Copyright Year	2015
Abstract	The precipitation and burning of insoluble starch granules from sweet sorghum juice on heating coils prevented the large-scale manufacture of syrup at a new industrial plant in Missouri, USA. To remove insoluble starch granules, a series of small and large-scale experiments were conducted at the plant on raw juice extracted by roller milling from two commercial sweet sorghum cultivars Honey Drip and M81E. Both starch concentration and granule size contributed to processing problems. Leaving de-aerated raw juice in settling tanks before clarification settled out a considerable amount of small to medium sized starch granules, but did not remove enough starch. Hot clarification of juice performed better than cold clarification in removing starch and turbid particles. During the USDA hot clarification process (heat to 80 °C; lime to pH 6.5 with milk of lime [360 g/L]; 5 ppm polyanionic flocculant) in the plant, some starch was solubilized. Small to large size starch granules were removed in the clarification mud which improved as settling time progressed. At least 1 h of settling is recommended in the plant. Late in the processing season, scum formed on the surface of the juice that did not contain any starch granules, but did contain microscopic bubbles making the scum less dense than juice and unprecipitable. This highlights sweet sorghum quality differences across the processing season that still need to be addressed along with cultivar differences. Overall, the introduction of juice de-aeration, settling, and clarification steps enabled the large-scale manufacture of syrup and helped to mitigate quality and processing differences due to cultivar and environmental effects and thus assured continual supply to customers.
Starting Page	249
Ending Page	257
Page Count	9
File Format	PDF
ISSN	09721525
Journal	Sugar Tech
Volume Number	18
Issue Number	3
e-ISSN	09740740
Language	English
Publisher	Springer India
Publisher Date	2015-06-25
Publisher Place	New Delhi
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sweet sorghum Starch Juice clarification Large-scale processing Commercial syrup manufacture Agriculture
Content Type	Text
Resource Type	Article
Subject	Agronomy and Crop Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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