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Storage performance of Taiwanese sweet potato cultivars

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Abstract

Three sweet potato cultivars (TNG57, TNG66, and TNG73), provided by the Taiwanese Agricultural Research Institute (TARI), were stored at either 15 °C or under ambient conditions (23.8 ~ 28.4 °C and 77.1 ~ 81.0 % of relative humidity). Sweet potato roots were randomly chosen from each replicate and evaluated for measurement of weight loss, sugar content analysis, and sprouting after 0, 14, 24, 48, 56, 70, 84, and 98 days of storage. Fresh sweet potato roots were baked at 200 °C for 60 min then samples were taken for sugar analysis. After 14 days of ambient condition storage, the sprouting percentages for TNG57, TNG66, and TNG73 were 100, 85, and 95 % respectively. When sweet potatoes were stored at 15 °C, the weight loss became less and no sweet potato root sprouted after 14 days of storage. Because manufacturers can store sweet potatoes at 15 °C for almost 2 month without other treatments, the supply capacity shortage in July and September can be reduced. The total sugar content slowly increased along with increasing the storage time. After baking, the total sugar content of sweet potatoes significantly increased due to the formation of maltose. Maltose became the major sugar of baked sweet potatoes. Raw sweet potatoes stored at 15 °C had higher total sugar contents after baking than those stored under ambient conditions. Raw sweet potatoes were recommended to be stored at 15 °C before baking.

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References

  • Bradbury JH, Singh U (1986) Ascorbic acid and dehydroascorbic acid content of tropical root crops from the south pacific. J Food Sci 51:975–978

    Article  CAS  Google Scholar 

  • Chan CF, Chiang CM, Lai YC, Huang CL, Kao SC, Liao WC (2012) Changes in sugar composition during baking and their effects on sensory attributes of baked sweet potatoes. J Food Sci Technol. doi:10.1007/s13197-012-0900-z

  • Cohen JI (2005) Poorer nations turn to publicly developed GM crops. Nat Biotechnol 23:27–33

    Article  CAS  Google Scholar 

  • Doymaz I (2011) Infrared drying of sweet potato (Ipomoea batatas L.) slices. J Food Sci Technol. doi:10.1007/s13197-010-0217-8

  • Dziedzoave NT, Graffham AJ, Westby A, Otoo J, Komlaga G (2010) Influence of variety and growth environment on β-amylase activity of flour from sweet potato (Ipomoea batatas). Food Control 21:162–165

    Article  CAS  Google Scholar 

  • Ezekiel R, Rana G, Singh N, Singh S (2010) Physico-chemical and pasting properties of starch from stored potato tubers. J Food Sci Technol 47:195–201

    Article  CAS  Google Scholar 

  • Gore HC (1923) Formation of maltose in sweet potatoes on cooking. Ind Eng Chem Res 15:938–940

    Article  CAS  Google Scholar 

  • Haseena M, Kasturi Bai KV, Padmanabhan S (2010) Post-harvest quality and shelf-life of tender coconut. J Food Sci Technol 47:686–689

    Article  CAS  Google Scholar 

  • Huang CL, Liao WC, Chan CF, Lai YC (2012) Influence of baking temperature and time on β-carotene contents of baked sweet potatoes. J Food Agric Environ 10:137–140

    CAS  Google Scholar 

  • Kaplan F, Sung DY, Guy CL (2006) Roles of β-amylase and starch breakdown during temperatures stress. Physiol Plant 126:120–128

    Article  CAS  Google Scholar 

  • Kaur M, Oberoi DPS, Sogi DS, Gill BS (2011) Physicochemical, morphological and pasting properties of acid treated starches from different botanical sources. J Food Sci Technol 48:460–465

    Article  CAS  Google Scholar 

  • Koehler PE, Kays SJ (1991) Sweet potato flavor: quantitative and qualitative assessment of optimum sweetness. J Food Qual 14:241–249

    Article  Google Scholar 

  • Lai YC, Huang CL, Chan CF, Lien CY, Liao WC (2011) Studies of sugar composition and starch morphology of baked sweet potatoes (Ipomoea batatas (L.) Lam). J Food Sci Technol. doi:10.1007/s13197-011-0453-6

  • Lien CY, Lee AYF, Chan CF, Lai YC, Huang CL, Liao WC (2010) Extraction parameter studies for anthocyanin extraction from purple sweet potato variety TNG73, Ipomoea btatas, L. Appl Eng Agric 26:441–446

    Article  Google Scholar 

  • Lien CY, Chan CF, Huang CL, Lai YC, Liao WC (2012a) Studies of carotene extraction from sweet potato variety CYY95-26, Ipomoea batatas, L. Int J Food Eng. doi:10.1515/1556-3758.2490

  • Lien CY, Chan CF, Lai YC, Huang CL, Liao WC (2012b) Ultrasound-assisted anthocyanin extraction of purple sweet potato variety TNG73, Ipomoea batatas, L. Sep Sci Technol 47:1241–1247

    Article  CAS  Google Scholar 

  • Losh JM, Phillips JA, Axelson JM, Schulman RS (1981) Sweet potato quality after baking. J Food Sci 46:283–290

    Article  Google Scholar 

  • McArdle RN, Bouwkamp JC (1986) Use of heat treatments for saccharification of sweet potato mashes. J Food Sci 51:364–366

    Article  CAS  Google Scholar 

  • McConnell RY, Truong VD, Walter WM Jr, McFeeters RF (2005) Physical, chemical and microbial changes in shredded sweet potatoes. J Food Process Preserv 29:246–267

    Article  CAS  Google Scholar 

  • Picha DH (1985) HPLC determination of sugars in raw and baked sweet potato. J Food Sci 50:1189–1190

    Article  CAS  Google Scholar 

  • Picha DH (1986a) Sugar content of baked sweet potatoes from different cultivars and lengths of storage. J Food Sci 51:845–846

    Article  CAS  Google Scholar 

  • Picha DH (1986b) Weight loss in sweet potatoes during curing and storage: contribution of transpiration and respiration. J Am Soc Hortic Sci 111:889–892

    Google Scholar 

  • Ramesh Yadav A, Ahadevamma S, Tharanathan RN, Ramteke RS (2007) Characteristics of acetylated and enzyme-modified potato and sweet potato flours. Food Chem 103:1119–1126

    Article  Google Scholar 

  • Rees D, van Oirschot QEA, Amour R, Rwiza E, Kapinga R, Carey T (2003) Cultivar variation in keeping quality of sweetpotatoes. Postharvest Biol Technol 28:313–325

    Article  Google Scholar 

  • Rezaee M, Almassi M, Minaei S, Paknejad F (2011) Impact of post-harvest radiation treatment timing on shelf life and quality characteristics of potatoes. J Food Sci Technol. doi:10.1007/s13197-011-0337-9

  • Shahba MA, Stushnoff C, McSay AE, Holm D, Davidson R (2007) Effect of temperature on storage properties, dormancy, soluble sugar content and α-galactosidase activity of seven new potato (Solanum tuberosum L.) cultivars. J Food Agric Environ 5:116–121

    CAS  Google Scholar 

  • Takahata Y, Noda T, Nagata T (1994) Effect of β-amylase stability and starch gelatinization during heating on varietal differences in maltose content in sweetpotatoes. J Agric Food Chem 42:2564–2569

    Article  CAS  Google Scholar 

  • Takahata Y, Noda T, Sato T (1995) Changes in carbohydrates and enzyme activities of sweet potato lines during storage. J Agric Food Chem 43:1923–1928

    Article  CAS  Google Scholar 

  • Van Den T, Biermann CJ, Marlett JA (1986) Simple sugars, oligosaccharides, and starch concentrations in raw and cooked sweet potato. J Agric Food Chem 34:421–425

    Article  Google Scholar 

  • Vimala B, Nambisan B, Hariprakash B (2011) Retention of carotenoids in orange-fleshed sweet potato during processing. J Food Sci Technol 48:520–524

    Article  CAS  Google Scholar 

  • Wu X, Sun CJ, Yang LH, Zeng G, Liu ZY, Li YM (2008) β-carotene content in sweet potato varieties from China and the effect of preparation on β-carotene retention in the Yanshu No. 5. Innov Food Sci Emerg Technol 9:581–586

    Article  CAS  Google Scholar 

  • Zhang Z, Wheatley CC, Corke H (2002) Biochemical changes during storage of sweet potato roots differing in dry matter content. Postharvest Biol Technol 24:317–325

    Article  CAS  Google Scholar 

Download references

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Authors and Affiliations

  1. Agricultural Research Institute, Chia-Yi Agricultural Experiment Station, 2, Min-Cheng Rd., Chia-Yi, Taiwan

    Che-Lun Huang & Yung-Chang Lai

  2. Department of Nursing, Chang Gung University of Science and Technology, Chia-Yi, Taiwan

    Wayne C. Liao

  3. Department of Applied Cosmetology, Hung Kuang University, Taichung, Taiwan

    Chin-Feng Chan

Authors
  1. Che-Lun Huang
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  2. Wayne C. Liao
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  3. Chin-Feng Chan
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  4. Yung-Chang Lai
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Correspondence to Yung-Chang Lai.

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Huang, CL., Liao, W.C., Chan, CF. et al. Storage performance of Taiwanese sweet potato cultivars. J Food Sci Technol 51, 4019–4025 (2014). https://doi.org/10.1007/s13197-013-0960-8

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  • DOI: https://doi.org/10.1007/s13197-013-0960-8

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