Cov kws tshawb fawb los ntawm Singapore tau tuaj nrog lub tshuab ua qos yaj ywm tshiab uas tuaj yeem ua rau tib neeg lub cev zom cov qos yaj ywm hmoov nplej qeeb dua.
"Ib txhia ntseeg tias cov khoom qos yaj ywm tsis zoo vim tias lawv tuaj yeem ua rau cov ntshav qab zib nce sai, uas ua rau muaj kev pheej hmoo rau cov neeg mob ntshav qab zib lossis cov uas xav tswj lub cev hnyav," said Amy Lin, tus thawj coj ntawm kev kawm.
Cov kev sim hauv chav sim qhia tau hais tias txoj kev tshiab no thaiv kev nkag mus ntawm qee yam digestive enzymes rau cov qos yaj ywm starch, ua rau muaj kev tswj xyuas ntau dua ntawm cov piam thaj.
"Peb pab neeg tau pom tias kev hloov pauv qhov muaj ob lub plab zom mov, mucosal α-amylase thiab α-glucosidase, hauv cov hnyuv me yog lub tswv yim ua tiav rau qeeb thiab tsis tu ncua tso cov piam thaj los ntawm cov qos yaj ywm," Lin piav qhia.
Rau cov txheej txheem tshiab, cov kws tshawb fawb txiav cov qos yaj ywm rau hauv cubes thiab blanched hauv dej kub nrog cov khoom noj rau 30 feeb. Cov khoom xyaw uas siv hauv cov tshuaj tau raug xaiv los ua "feem ntau lees paub tias muaj kev nyab xeeb" raws li tus qauv tsim los ntawm US Food and Drug Administration rau cov khoom uas pom tau tias muaj kev nyab xeeb rau kev siv hauv cov khoom noj.
Cov txheej txheem no ua rau muaj kev cuam tshuam nrog pectin, cov dej-soluble fiber hauv cov qos yaj ywm, tsim cov qauv zoo li gel uas ua rau muaj kev cuam tshuam ntawm starch granules thiab digestive enzymes.
Lin hais tias "Yog tsis muaj kev ua haujlwm no, cov enzymes txav mus rau hauv thiab tawm ntawm lub hlwb, thiab cov hmoov txhuv nplej siab tau tawg los ntawm ob qho tib si enzymes thiab hloov mus rau cov piam thaj sai," Lin hais. "Kev ua tiav tso cai rau cov hmoov txhuv nplej siab ua kom qeeb qeeb kom tsis txhob muaj glycemic nce ntxiv, thiab tom qab ntawd hloov pauv mus rau cov piam thaj kom ua tau raws li peb lub zog thiab kev noj haus."
Txoj kev no tsis yog los tiv thaiv cov qos yaj ywm los ntawm kev ua noj dhau lawm, tab sis kom qeeb kev zom zaub mov kom tsis txhob muaj ntshav qab zib nce sai. Cov kws tshawb fawb hais tias kev hloov kho kuj tseem yuav pab tau cov neeg siv khoom txaus siab rau lub sijhawm ntev dua tom qab noj cov qos yaj ywm ua tiav, pab kom tsis txhob noj ntau dhau.