No.

As you said yourself in the first sentence of the post "Illusory Reality can make an object in an illusion spell real for one minute". The ability clearly states that the object only remains real for a single minute. After this minute the object loses its essence and returns to be an illusion if the spell is still going.

Illusory reality persists after the end of the spell of origin.

As Marq wrote in his answer, specific beats general. The illusory reality states that the illusion made real will stay real for a full minute. Unless the object itself is targeted of dispelling it will remain there for the full duration.

Even the fluff description, for whatever is worth, support this: "you have learned the secret of weaving shadow magic into your illusions to give them a semireality". Your ability Illusory Reality sustain the now real object with shadow magic that has nothing to do with the rest of the spell.