PoshanHiranyagarbha · Class 11-12
Bioavailability: thali mein sirf iron hona kaafi nahi
Do thaliyon mein iron ki matra barabar hai, phir bhi ek thali ka iron body zyada kyun le sakti hai?
Socho pehle… phir dekho jawab
Kyunki body ko kitna milta hai woh sirf matra par nahi, bioavailability par nirbhar karta hai: kya iron aisi shakal mein hai aur uske saath kya hai jo avshoshan badhaye ya roke.
Definition aur mechanism: bioavailability matlab khaane mein maujood tatva ka kitna hissa body sach mein avshoshit karke istemaal kar paati hai. Haemoglobin (iron yukt protein) oxygen ko phephdon se tissues tak le jaata hai, isliye iron aanton se avshoshit hona zaroori hai.
Avshoshan badhane wale: vitamin C (nimbu, amla, amrood) paudhon ke iron ko aasaani se avshoshit hone wali shakal mein rakhta hai. Isliye saag, chana ya bajra ke saath nimbu ya amla ek simple jodi hai.
Avshoshan rokne wale: pure anaaj aur dalon mein phytates hote hain jo iron ko bandh kar sakte hain. Bhigona, ankurit karna (sprouting) aur khameer uthana (jaise idli-dosa batter) phytates ko ghataane ki parampara hain. Isliye ankurit moong-chana aur khameeri batter hamari rasoi ke purane tareeke hain.
Trade-off: pura anaaj aur Shree Anna fibre, minerals aur kam paani wali kheti ka fayda dete hain, par phytates ki chinta bhi saath aati hai. Samadhan khaana chhodna nahi, balki paramparik taur par bhigona, ankurit karna, khameer uthana aur khatta saathi jodna hai. Sawdhani: kamzori ya thakaan par khaane se ilaaj nahi, bade ko batao aur doctor ko dikhao.
Ghar pe try karo
Ek paramparik thali ke liye ek table banao: kaun si cheez iron deti hai, kaun si vitamin C, aur kaun si taiyari (bhigona/ankurit/khameer) avshoshan ko behtar karti hai. Ek line mein trade-off likho.
Wow!
Khameer uthane aur ankurit karne ki paramparik vidhiyan sirf swaad ke liye nahi; ye khaane se milne wale minerals ko behtar banane mein bhi madad karti hain!
3 sawaal
- Bioavailability ka sahi arth?
Jawab dekho
Tatva ka woh hissa jo body sach mein avshoshit karke istemaal karti hai. Bioavailability avshoshit aur istemaal hone wale hisse ko kehte hain, kul matra ko nahi.
- Phytates ke baare mein sahi kya hai?
Jawab dekho
Pure anaaj aur dalon mein hote hain aur iron ko bandh kar sakte hain. Phytates iron jaise minerals ko bandh kar avshoshan ghataa sakte hain; bhigona aur khameer uthana unhe ghataane ki parampara hain.
- Kaun sa sujhav paudhon ke iron ke avshoshan ko behtar karne ke liye hai?
Jawab dekho
Saag ke saath nimbu ya amla. Vitamin C paudhon ke iron ko aasaani se avshoshit hone mein madad karta hai.
NCERT se jodo: NCERT Class 11 Biology — breathing and exchange of gases (oxygen transport); NCERT Class 12 Biology — microbes in human welfare (fermentation)